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fix(agents): correctly recognize prefixed GPT-5.6 models in opencode and pi #543

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fix(agents): correctly recognize prefixed GPT-5.6 models in opencode and pi #543

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12 changes: 8 additions & 4 deletions src/agents/plugins/opencode/opencode-dynamic-models.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -44,10 +44,14 @@ const RESPONSES_API_MODEL_PATTERNS: RegExp[] = [
/^gpt-5-4-/, // hyphenated variant of gpt-5.4-*
/^gpt-5\.5-/, // gpt-5.5-2026-04-24 — same Azure restriction as gpt-5.4
/^gpt-5-5-/, // hyphenated variant of gpt-5.5-*
/^gpt-5\.6-/, // gpt-5.6-sol-2026-07-09 — same Azure restriction (tools + reasoning_effort)
/^gpt-5-6-/, // hyphenated variant of gpt-5.6-*
/gpt-5[.-]6/, // gpt-5.6-* (e.g. openai.gpt-5.6-luna) — same Azure restriction (tools + reasoning_effort)
];

function isGpt56Model(id: string): boolean {
// Some deployments include a provider prefix (for example, openai.gpt-5.6-luna).
return /gpt-5[.-]6/.test(id);
}

function isResponsesApiModel(id: string): boolean {
return RESPONSES_API_MODEL_PATTERNS.some(p => p.test(id));
}
Expand All @@ -58,7 +62,7 @@ function detectFamily(id: string): string {
if (id.startsWith('claude')) return 'claude-4';
if (id.startsWith('gemini')) return 'gemini-2';
if (id.startsWith('gpt-4')) return 'gpt-4';
if (id.startsWith('gpt-5')) return 'gpt-5';
if (id.startsWith('gpt-5') || isGpt56Model(id)) return 'gpt-5';
if (/^o[134]-/.test(id) || id === 'o1') return 'openai-reasoning';
if (id.startsWith('qwen')) return 'qwen3';
if (id.startsWith('deepseek')) return 'deepseek';
Expand All @@ -77,7 +81,7 @@ function detectLimits(id: string, family: string): { context: number; output: nu
if (id.startsWith('gpt-4.1')) return { context: 1048576, output: 32768 };
if (id.startsWith('gpt-4o')) return { context: 128000, output: 16384 };
if (id.startsWith('gpt-5.5') || id.startsWith('gpt-5-5')) return { context: 1050000, output: 128000 }; // Azure-published window for gpt-5.5
if (id.startsWith('gpt-5.6') || id.startsWith('gpt-5-6')) return { context: 1050000, output: 128000 }; // Azure-published window for gpt-5.6
if (isGpt56Model(id)) return { context: 1050000, output: 128000 }; // Azure-published window for gpt-5.6
if (id.startsWith('gpt-5')) return { context: 400000, output: 128000 };
if (/^o[134]-/.test(id) || id === 'o1') return { context: 200000, output: 100000 };
if (id.startsWith('qwen') || id.startsWith('moonshotai') || id.startsWith('kimi')) return { context: 262144, output: 131072 };
Expand Down
6 changes: 3 additions & 3 deletions src/agents/plugins/pi/pi.models.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,7 @@ const RESPONSES_API_PATTERNS: RegExp[] = [
/^gpt-5-4-/,
/^gpt-5\.5-/,
/^gpt-5-5-/,
/^gpt-5\.6-/,
/^gpt-5-6-/,
/gpt-5[.-]6/,
];

export function classifyPiModel(modelId: string): PiModelClassification {
Expand Down Expand Up @@ -69,7 +68,7 @@ function detectLimits(id: string): { contextWindow: number; maxTokens: number }
if (id.startsWith('gemini')) return { contextWindow: 1048576, maxTokens: 65536 };
if (id.startsWith('gpt-4.1')) return { contextWindow: 1048576, maxTokens: 32768 };
if (/^gpt-5\.5-/.test(id) || /^gpt-5-5-/.test(id)) return { contextWindow: 1050000, maxTokens: 128000 };
if (/^gpt-5\.6-/.test(id) || /^gpt-5-6-/.test(id)) return { contextWindow: 1050000, maxTokens: 128000 };
if (/gpt-5[.-]6/.test(id)) return { contextWindow: 1050000, maxTokens: 128000 };
if (id.startsWith('gpt-5')) return { contextWindow: 400000, maxTokens: 128000 };
if (/^o[134]-/.test(id) || id === 'o1') return { contextWindow: 200000, maxTokens: 100000 };
if (id.startsWith('qwen') || id.startsWith('moonshotai') || id.startsWith('kimi')) {
Expand All @@ -96,6 +95,7 @@ function isReasoningModel(id: string): boolean {
id.startsWith('claude') ||
id.startsWith('gemini') ||
id.startsWith('gpt-5') ||
/gpt-5[.-]6/.test(id) ||
/^o[134]-/.test(id) ||
id === 'o1' ||
id.startsWith('deepseek') ||
Expand Down