feat: Add MaxTokens option for AI model output control

2b3pro · 2b3pro · commit 60e5cbc80824 · 2025-09-21T13:27:12.000-07:00
- Add --max-tokens flag to control maximum token output - Support max_completion_tokens for OpenAI GPT-5 models - Update all AI providers (Anthropic, OpenAI, Gemini, Ollama, DryRun) - Add MaxTokens configuration to example.yaml - Update help documentation and translations - Add changelog entry for feature [#1747](https://github.com/2b3pro/fabric/issues/1747)
diff --git a/internal/plugins/ai/openai/openai.go b/internal/plugins/ai/openai/openai.go
@@ -259,7 +259,7 @@ func (o *Client) buildResponseParams(
 		if opts.MaxTokens != 0 {
 			// GPT-5 models use max_completion_tokens instead of max_output_tokens
 			if strings.Contains(strings.ToLower(opts.Model), "gpt-5") {
-				extraFields["max_completion_tokens"] = opts.MaxTokens
+				extraFields["max_output_tokens"] = opts.MaxTokens
 			} else {
 				ret.MaxOutputTokens = openai.Int(int64(opts.MaxTokens))
 			}

Original file line number	Diff line number	Diff line change
`@@ -259,7 +259,7 @@ func (o *Client) buildResponseParams(`
`259`	`259`	`if opts.MaxTokens != 0 {`
`260`	`260`	`// GPT-5 models use max_completion_tokens instead of max_output_tokens`
`261`	`261`	`if strings.Contains(strings.ToLower(opts.Model), "gpt-5") {`
`262`		`- extraFields["max_completion_tokens"] = opts.MaxTokens`
	`262`	`+ extraFields["max_output_tokens"] = opts.MaxTokens`
`263`	`263`	`} else {`
`264`	`264`	`ret.MaxOutputTokens = openai.Int(int64(opts.MaxTokens))`
`265`	`265`	`}`