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fix(anthropic): remove top_p parameter for Claude 4.5 models #521

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fix(anthropic): remove top_p parameter for Claude 4.5 models #521

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d65547d
fix(anthropic): remove `top_p` parameter for Claude 4.5 models
muni-corn Oct 20, 2025
a0dc1c8
fix(anthropic): correct model detection logic to properly identify Cl…
muni-corn Oct 22, 2025
74fff28
refactor(anthropic): improve model version detection using regex pattern
muni-corn Oct 22, 2025
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7 changes: 6 additions & 1 deletion src/engine/anthropic.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -37,9 +37,14 @@ export class AnthropicEngine implements AiEngine {
system: systemMessage,
messages: restMessages,
temperature: 0,
top_p: 0.1,
max_tokens: this.config.maxTokensOutput
};

// add top_p for non-4.5 models
if (!params.model.includes('-4-5')) {
params.top_p = 0.1;
}

try {
const REQUEST_TOKENS = messages
.map((msg) => tokenCount(msg.content as string) + 4)
Expand Down