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improvement(providers): audit and update all provider model definitions #3893

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waleedlatif1 merged 3 commits into from
Apr 2, 2026
+414 −305
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improvement(providers): audit and update all provider model definitions #3893

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76e077d
improvement(providers): audit and update all provider model definitions
waleedlatif1 Apr 2, 2026
4d02da5
fix(providers): add maxOutputTokens to azure/o3 and azure/o4-mini
waleedlatif1 Apr 2, 2026
c518c6f
fix(providers): move maxOutputTokens inside capabilities for azure mo…
waleedlatif1 Apr 2, 2026
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15 changes: 11 additions & 4 deletions apps/sim/providers/anthropic/core.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -77,17 +77,24 @@ const THINKING_BUDGET_TOKENS: Record<string, number> = {
}

/**
* Checks if a model supports adaptive thinking (Opus 4.6+)
* Checks if a model supports adaptive thinking (thinking.type: "adaptive").
* Per the Anthropic API, only Opus 4.6 and Sonnet 4.6 support adaptive thinking.
* Opus 4.5 supports effort but NOT adaptive thinking — it uses budget_tokens with type: "enabled".
*/
function supportsAdaptiveThinking(modelId: string): boolean {
const normalizedModel = modelId.toLowerCase()
return normalizedModel.includes('opus-4-6') || normalizedModel.includes('opus-4.6')
return (
normalizedModel.includes('opus-4-6') ||
normalizedModel.includes('opus-4.6') ||
normalizedModel.includes('sonnet-4-6') ||
normalizedModel.includes('sonnet-4.6')
)
}

/**
* Builds the thinking configuration for the Anthropic API based on model capabilities and level.
*
* - Opus 4.6: Uses adaptive thinking with effort parameter (recommended by Anthropic)
* - Opus 4.6, Sonnet 4.6: Uses adaptive thinking with effort parameter
* - Other models: Uses budget_tokens-based extended thinking
*
* Returns both the thinking config and optional output_config for adaptive thinking.
Expand All @@ -104,7 +111,7 @@ function buildThinkingConfig(
return null
}

// Opus 4.6 uses adaptive thinking with effort parameter
// Models with effort support use adaptive thinking
if (supportsAdaptiveThinking(modelId)) {
return {
thinking: { type: 'adaptive' },
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