Yes it is possible, but even with syntax check, AI generated code might be completely wrong on all other levels. With current state of the art GPTs they still don't have any kind of actual understanding what they write. Hallucinations are still very common.
AI is great tool in the hand of experienced human that adds missing understanding element. So programmers can use AI assistants easily as they spot logical errors quickly.
Dr. Tomasz,
I would like to know what could be achieved if a person like you, using the content in this Community, in the User Manual, in the Knowledge Base and in other similar places, decided to create an AI for AmiBroker/AFL.
I would pay to have such a tool as a teacher 24/7/365, no doubt about it.
Such thing exits already Better way to get to information - #7 by Tomasz but due to limitations of LLM (hallucinations) it requires human approval/moderation. The LLMs are simply too unreliable, even if they are provided with right context.
I know that within these 6 favorite bookmarks are the answers to all my doubts but...it is not easy to find them!
However, I will not give up 
.
None of these work any better than ChatGPT. In fact they can be illegal because using our copyrighted content (Users' guide, AFL reference) without our permission is violation of our intellectual property rights.
Ok, I understand.
I saw that my post asking if a specialized AFL GPT I found worked well has been deleted, I understand that you deleted it because of this. Sorry I didn't notice!!
I'm still trying to create a GPT to help me with AFL. I'm trying to learn about Prompts to see if I can create something useful.
Can Prompts be shared here?
I already explained, no amount of prompting would change the fact that GPTs don't understand a thing. It is just "text generator". Not something that actually understands anything. The amount of hallucination is ridiculous. This GPT even if asked the most simple thing hallucinates like hell. It comes up with function names that don't exist. Without knowledgeable human checking what this thing writes, the code generated can't be trusted. GPTs can be fun when you ask them to write a POEM because in poetry you don't have rules. GPTs are good at TEXT tasks like translation (that was original purpose of Transformers) and summarization, writing a novel maybe. Programming is another story. Programming requires not only fluency in language syntax, but also understanding how some abstract concepts work.
ChatGPT is simply stupid. Ask him "Write MA crossover in AFL" and it will even write correct code:
but then say "But Moving Average function in AFL is NOT "MA" and this is what this stupido says:
It does NOT KNOW anything. Prompts can steer it to utter nonsense.
If you say that you are an elephant it would agree and continue with nonsense.
I understand Dr. Tomasz, thank you for your explanations. I understand that it may or may not be useful and that you have to be very careful with hallucinations.
But it will be possible with some very well-made prompts that it can become better, right?
That is, instead of "tricking" him as in the MA example, giving him correct data and also correcting him when he makes mistakes.
Well, it is a hope for newbies like me to learn AFL, there is no doubt about that. Although we will see if we lose hope or not.
Yes, you can provide it with correct information. Problem is that GPTs don't know what is true what is not. They lack meta-knowledge or any knowledge at all. They don't know what they know and they don't know what they don't know.
GPTs are statistically based text generators. They produce "nicely sounding text" that statistically likely could be produced by human in response to given question. It is a play of law of large numbers. If there are lots of examples in the training set that closely resemble your question you are likely to get something that is statistically correct.
ChatGPT now allows uploading custom documents. It is great way to get fact-based answers from AmiBroker Users' Guide:
Simply use (+) button in ChatGPT to upload UsersGuide.pdf (available for download from AmiBroker - Technical Analysis Software. Charting, Portfolio Backtesting, Scanning of stocks, futures, mutual funds, forex (currencies). Alerts. Free quotes.)
This way ChatGPT will look for the information in the AmiBroker users guide greatly enhancing accuracy of the answers.
Just a heads up. Over the last few days, I was playing with the Google Gemini Pro 2.5 Experimental model that was just released about 2 weeks ago. It is available basically for free from Google's AI Studio.
And I have one thing to say: It is much, much better than OpenAI's offerings. Try it for yourself, you will be surprised.
Thanks to Gemini 2.5 Pro ability to handle 1 million input tokens, I fed it with entire AmiBroker Users's guide (about 900K tokens when converted to markdown format) and told it to produce "condensed" knowledge document of about 50K words, it came up with this:
AmiBroker 6.9x is a comprehensive technical analysis program featuring advanced charting, back-testing, scanning, and optimization capabilities.
Editions:
System Requirements:
Installation:
C:\Program Files\AmiBroker.Getting Help:
Database Structure:
data subfolder in the AmiBroker installation directory.0-9, a-z, _.broker.workspace file: stores category names, composite info.broker.master file: stores symbol table for quick loading.External Data Sources:
File -> Database Settings. Choose the plugin from "Data source".Enabled: Caches data retrieved from the plugin into AmiBroker's local database files for faster access. Required for most RT feeds.Disabled: Reads directly from the external source each time (can be slower).Categories:
Symbols tab of the Workspace window.Symbol -> Categories window or Symbol -> Organize Assignments.broker.workspace. Templates broker.sectors and broker.industries are used when creating new databases.Tools -> Update US symbol list and categories automatically sets up US stock lists and industry assignments (overwrites existing structure).Watch Lists:
Symbol -> Watch List menu or right-click context menus..TLS files in the Watchlists subfolder within the database directory..TLS, .LST, .TXT, .CSV files.Layers:
Layers tab of the Workspace window.Main Window:
Customization (Tools -> Customize):
Chart Window:
.chart).Window -> Floating).Workspace Window Tabs:
Formulas directory. Double-click or use context menu (Insert/Overlay) to apply to charts.Other Key Windows:
Param* functions in AFL. Adjust axes, grid, show/hide trading arrows.Window -> Data Window): Shows OHLCV, indicator values for the bar under the mouse cursor.Analysis -> Formula Editor): Edit AFL code with syntax highlighting, auto-complete, parameter info, error reporting, code folding, debugging features.File -> New -> Web Research): Embedded browser to view web pages related to the selected symbol. User-definable URLs with symbol placeholders ({t}, {s}, {S}, {a}, {i}, {t0} etc.). Sync options control automatic updates when symbol changes. New Chromium/Edge engine available in v6.90 (64-bit only, requires WebView2 runtime).File -> New -> Account): Track trades, equity, commissions manually. Enter transactions chronologically. Save/load accounts (.acx files).Symbol -> Information): View/edit symbol details, name, alias, categories, fundamental data fields, currency, margin/point value, round lot/tick size.Window -> Notepad): Store free-form text notes per symbol. Accessible via NoteGet/NoteSet AFL functions.Symbol -> Quote Editor): Manually add, edit, delete individual quote bars.Symbol -> Categories): Define names for markets, groups, sectors, industries. Assign base indexes and profile URLs per market. Re-arrange category order (v6.10+).Symbol -> Organize Assignments): Move multiple symbols between categories, delete multiple symbols.Window -> Realtime Quote): Displays streaming real-time data fields for selected symbols (requires RT data source). Limited symbol count based on subscription/edition. Context menu for Time & Sales, Easy Alerts. Features Bid/Ask trend indicator (v5.90+).Window -> Easy Alerts): Define simple price-based alerts without coding (RT mode only).Window -> Time & Sales): Shows every incoming trade, bid, ask tick with color coding. Includes short-term trade statistics. Unlimited windows in Pro edition.Tools -> Bar Replay): Play back historical data across all symbols at adjustable speed. Affects charts and analysis.Analysis -> Automatic Analysis or File -> New -> Analysis): Perform scans, explorations, backtests, optimizations. Load/Save analysis projects (.apx files). Define Apply To (All, Current, Filter) and Range (All, Recent bars/days, From-To). Buttons for Scan, Explore, Back Test, Optimize, Report, Equity, Settings, Filter. Multi-threaded execution in Pro edition.Analysis -> Commentary): Display textual analysis generated by AFL formulas.Window -> Log): View AFL errors (compile-time and run-time) and _TRACE output.Tools -> Performance Monitor): Shows memory usage and performance statistics.Data Sources:
AmiQuote:
.L, .AX, .PA).Tools -> Auto-update quotes) or manual mode..TLS).ASCII Importer:
.csv, .txt, etc.).$ commands (e.g., $FORMAT, $SEPARATOR, $SKIPLINES, $DATE_YMD, $AUTOADD)..format files in Formats subdirectory. import.types defines file types available in the import dialog.File -> Import Wizard) provides simplified interface for common formats.$TICKMODE 1 - Warning: deletes existing quotes for the symbol first).HH:MM:SS.mmmuuu).Metastock Importer:
MASTER/EMASTER and F*.DAT files into AmiBroker native database.Real-Time Data Handling:
File -> Database Settings.Enabled.Symbol -> New.Window -> Realtime Quote) shows streaming data.Plugin Status Menu -> Force Backfill).Wait for backfill option in Analysis window ensures data is complete before scan/backtest runs (supported by eSignal, IQFeed).Fundamental Data:
Symbol -> Information window.GetFnData("fieldname").$FORMAT.Core Concept: Array Processing:
+, -, *, /, MA, RSI, etc.) are applied element-wise across entire arrays simultaneously, making execution very fast.Syntax Basics:
;).// single line or /* multi-line */.Open(O), High(H), Low(L), Close(C), Volume(V), OpenInt(OI), Avg ((H+L+C)/3).").Operators:
+, -, *, /, % (modulus), ^ (power).<, >, <=, >=, == (equality), != (inequality). Return 1 (true) or 0 (false).AND, OR, NOT.& (AND), | (OR).= (simple), +=, -=, *=, /=, %=, &=, |= (compound).[] (access array elements, e.g., Close[i]). BarCount gives number of bars (0 to BarCount-1).@.typeof(operand) returns string like "number", "array", "string", "function", "undefined".Flow Control (v4.40+):
if( condition ) statement1; [ else statement2; ]: Conditional execution. Use {} for compound statements.for( init; condition; loop ) statement;: Looping construct.while( condition ) statement;: Loop while condition is true.do statement; while( condition );: Loop, condition checked after first execution.switch( expression ) { case value1: statement; break; ... default: statement; }: Multi-way branching. break exits the switch.break;: Exits the innermost for, while, do-while, or switch.continue;: Skips rest of current loop iteration, proceeds to next.User-Defined Functions/Procedures (v4.40+):
function FunctionName( param1, param2, ... ) { ... return value; }procedure ProcedureName( param1, param2, ... ) { ... } (no return statement)local varname; or global varname; inside a function overrides default.SetOption("RequireDeclarations", True); enforces explicit declaration.Static Variables (v5.30+):
StaticVarRemove.StaticVarSet("name", value, persistent = False, compressionMode = cmDefault): Stores scalar, array, or matrix. persistent=True saves/loads value between AB sessions. compressionMode controls array compression (v6.10+).StaticVarGet("name", align = True): Retrieves value. align=True syncs array timestamps.StaticVarSetText("name", "string", persistent = False) / StaticVarGetText("name"): For string values.StaticVarRemove("name*"): Removes static variable(s) (wildcards supported).StaticVarAdd("name", value, keepAll = True, persistent = False): Atomic addition, faster alternative to AddToComposite for creating composites (v6.10+).StaticVarCompareExchange("name", exchange, comperand): Atomic compare-and-swap, useful for inter-thread synchronization (semaphores, critical sections) (v5.50+).StaticVarCount(): Number of static variables in memory.StaticVarInfo("name*", "field"): Get info ("list", "memory", "totalmemory", "count") (v5.60+).#pragma enable_static_decl(prefix). Use static _myvar;. Faster access than StaticVar* functions.Key Reserved Variables (for Backtesting/Analysis):
Buy, Sell, Short, Cover: Arrays holding 1/True for entry/exit signals.BuyPrice, SellPrice, ShortPrice, CoverPrice: Arrays specifying execution prices (default taken from AA Settings). Adjusted to fit High-Low range if needed.PositionSize: Controls trade size. Positive = dollar amount, Negative (-1 to -100) = % of portfolio equity. Can be an array for dynamic sizing.PositionScore: Ranks entry signals when choices exceed limits/funds. Higher absolute value is preferred. Used exclusively in Rotational Trading mode.RoundLotSize, TickSize, PointValue, MarginDeposit: Override per-symbol settings from Symbol->Information.Filter: Exploration mode only. Rows where Filter == 1 are included in results.Exclude: If Exclude == 1, symbol is skipped in AA modes.Key Reserved Variables (for Indicators/Charts):
Title: Overrides the default chart title string. Can include color codes (EncodeColor).GraphXSpace: Sets extra % space above/below plot.GraphZOrder: Controls plotting order (obsolete, use Plot ZOrder parameter).GraphLabelDecimals: Controls number of decimals in value labels (v5.90+).Important Functions (Selection):
Plot(): Primary function to draw indicators (lines, histograms, candles, bars, clouds, etc.). Many style options.PlotOHLC(): Plot custom OHLC charts.PlotShapes(): Draw arrows or other shapes on the chart.PlotForeign(): Plot data from another symbol on the current chart.PlotGrid(): Draw horizontal grid lines efficiently.PlotText() / PlotTextSetFont(): Draw text annotations at specific chart coordinates.Param() / ParamColor() / ParamStr() / ParamStyle() / ParamToggle() / ParamDate() / ParamTime() / ParamList() / ParamField(): Create user-adjustable parameters accessible via the Parameters dialog (Ctrl+R).Ref( array, periods ): Access past (-periods) or future (+periods) values of an array.ValueWhen( condition, array, N=1 ): Get value of array when condition was true N-th time ago.Highest(), Lowest(), HHV(), LLV(), HighestSince(), LowestSince(), HHVBars(), LLVBars(), HighestSinceBars(), LowestSinceBars(): Find high/low values and bars since they occurred over various periods/conditions.MA(), EMA(), WMA(), DEMA(), TEMA(), Wilders(), AMA(), HMA(): Various moving average calculations.StDev(), LinearReg(), LinRegSlope(), Correlation(), Median(), Percentile(), Kurtosis(), Skewness(): Statistical functions.Cross( array1, array2 ): Returns 1 where array1 crosses above array2.IIf( condition, truepart, falsepart ): Conditional value selection (element-wise on arrays). Evaluates BOTH parts. Use if/else for flow control.Cum( array ): Cumulative sum.Sum( array, periods ): Sum over periods lookback.BarIndex(): Returns array of zero-based bar numbers.DateTime(): Returns array of encoded date/time values. Use DateTimeToStr or DateTimeFormat to convert to string. Use DateTimeConvert for other conversions. DateTimeDiff to compare.Day(), Month(), Year(), DayOfWeek(), DayOfYear(), Hour(), Minute(), Second(), MilliSec(), MicroSec(): Extract date/time components.TimeFrameSet() / TimeFrameRestore() / TimeFrameCompress() / TimeFrameExpand() / TimeFrameGetPrice(): Functions for working with multiple time frames within a single formula. Not a replacement for chart/analysis periodicity settings.Foreign( ticker, field, fixup=1 ): Access data array ("O", "H", "L", "C", "V", "I", "1", "2") from another symbol (ticker). fixup=1 fills holes with previous close.SetForeign( ticker, fixup=True, tradeprices=False ) / RestorePriceArrays(): Temporarily replace built-in OHLCV arrays with those of another ticker. Faster than multiple Foreign calls.Study( studyID, chartID=1 ): Reference hand-drawn studies by their ID (set in study properties).AddToComposite( array, "~compositeticker", "field", flags ): Create composite indicators by summing/counting array values across symbols during a Scan.printf() / StrFormat(): Formatted output to Log/Commentary window (printf) or to a string variable (StrFormat). Supports %g, %f, %e, %s.StrExtract(), StrFind(), StrLeft(), StrRight(), StrMid(), StrLen(), StrReplace(), StrSort(), StrToLower(), StrToUpper(), StrToNum(), NumToStr(): String manipulation functions.Gfx* functions: Low-level graphics for custom chart drawing (lines, shapes, text, images). Operate in pixel or bar/price coordinate modes (GfxSetCoordsMode). Control Z-order (GfxSetZOrder).Gui* functions: Create and manage on-chart GUI controls (buttons, edits, sliders, etc.) (v6.30+).Process:
Buy, Sell, Short, Cover reserved variables in AFL.BuyPrice, etc.) and position sizing (PositionSize, SetPositionSize).PositionScore).SetOption, ApplyStop, SetBacktestMode, SetTradeDelays, etc.).Analysis -> Automatic Analysis).Pick button).Apply To range (All symbols, Current, Filter).Range (All quotations, N recent bars/days, From-To dates).Settings (Initial Equity, Commissions, Stops, Periodicity, etc.).Back test button.Report for detailed statistics.Key Settings (Analysis -> Settings):
ExitAtStop controls if exit happens at stop level (intraday if H/L hits it) or at regular trade price on stop bar/next bar. Stops can be set via UI or ApplyStop() function.Portfolio Backtesting (SetBacktestMode( backtestRegular ) or higher):
PositionSize to less than 100% (e.g., PositionSize = -25; for 25% of equity per trade).SetOption("MaxOpenPositions", N); limits concurrent trades.PositionScore variable ranks entry signals if candidates exceed limits/funds. Higher absolute score preferred.Preferences -> Currencies and Symbol->Information.sigScaleIn, sigScaleOut).Rotational Trading (SetBacktestMode( backtestRotational )):
PositionScore exclusively for ranking.SetOption("WorstRankHeld", value).Buy/Sell/Short/Cover variables are ignored.Optimization:
Optimize("Param Name", default, min, max, step) function in AFL for each parameter.Optimize button in Analysis window.OptimizerSetEngine("spso" | "trib" | "cmae"). Faster than exhaustive but may find local optimum. Set options via OptimizerSetOption().Backtest Report:
printf, WriteIf, WriteVal, NumToStr). Useful for custom interpretations.Foreign/AddToComposite calls; use Static Variables for inter-symbol communication if feasible.QuickAFL (enabled by default in AA settings) when testing partial ranges. Be aware SetBarsRequired(sbrAll) disables it.if(Status("stocknum")==0)).Tools -> Performance Monitor): Shows memory usage, cache stats, refresh times.Broker.Application.This distilled text covers the essential features, concepts, and usage patterns of AmiBroker.
Did you ask it for any suggestions (for next features) while enabled with "Grounding with Google Search" ?
I use LMNotebook with the manual. Instead of searching for a specific topic, I just type in a question and it guides me to the relevant sections while providing key information. Quite impressive and a real time saver!
OpenAI released GPT5 yesterday. My first impression is that it is overly verbose and not as great as OpenAI says. It hallucinates quite a lot. Definitely does not keep the promise of reduced hallucination.
Google’s Gemini Pro 2.5 Pro is still significantly better in my A/B testing in all areas.
Sorry OpenAI but it looks like stagnation.
Gemini Pro ranks 1st indeed!
Still far from the human baseline which explains the hallucination 
Give it time 
but at least it has thinking of its own
I never expected that it will deduce that latest conversion was the issue..
Reply from model about why it is not living up to the hype..
If you want, I can explain why GPT-5 may feel weaker in some coding/conversion tasks even though it’s technically stronger — that’s something I’ve noticed in your Pine Script → AFL work. It’s a tuning side effect.
Do you want me to break that down?
I have to write this in the context of what Sam Altman says in their GPT5 announcement.
Sam Altman said in this video:
One of the top use cases of Chat GPT is health. People use it a lot you've all seen examples of people getting day-to-day care advisor sometimes even lifesaving diagnosis. GPT-5 is the best model ever for health. It empowers you to be more in control of your healthcare journey. We really prioritize improving this for GPT-5. It scores higher than the previous model and help bench and evaluation we created with 250 physicians
OpenAI might have bright mathematicians aboard, but sorry to say, someone lost his mind here. IMHO saying such things to public, advertising real use of ChatGPT for self-diagnosis is absurd, dangerous and plain stupid. Sorry Sam, you look like an idiot and charlatan here. I think regulators should step in here and forbid advertising GPT for health and OpenAI and Sam Altman personally should be held responsible not only for not protecting the system against giving absurd medical advice but openly advertising GPT for health.
I don't believe that they are unaware of numerous reports of truly toxic advice given by ChatGPT leading to tragic developments, including inducing psychosis:
https://www.wsj.com/tech/ai/i-feel-like-im-going-crazy-chatgpt-fuels-delusional-spirals-ae5a51fc
causing divorces:
delivering detailed and personalized plans for drug use, calorie-restricted diets or self-injury:
or giving really bad "health plan":
Note: this post was proudly written by human, not AI. (So sorry for grammar imperfections)
No doubt, it is irresponsible on Sam Altman's part, but the intellectual impoverishment of humanity is admirable.
Not very surprising given how much time youngsters spend on mindless scrolling of social media. But they are really the victims of dopamine system in their brains, the blame has to be put on those who offer this brainwashing "entertainment" that is specifically designed to abuse dopamine reward systems in humans.
