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feat(providers): add Claude Opus 4.8 model #4771

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waleedlatif1 merged 2 commits into from
May 28, 2026
+24 −3
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feat(providers): add Claude Opus 4.8 model #4771

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6e3799b
feat(providers): add Claude Opus 4.8 model
waleedlatif1 May 28, 2026
1183424
chore(providers): update buildThinkingConfig docstring for Opus 4.8
waleedlatif1 May 28, 2026
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6 changes: 4 additions & 2 deletions apps/sim/providers/anthropic/core.ts
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Expand Up @@ -82,13 +82,15 @@ const THINKING_BUDGET_TOKENS: Record<string, number> = {

/**
* Checks if a model supports adaptive thinking (thinking.type: "adaptive").
* Opus 4.7 supports ONLY adaptive thinking (no extended thinking / budget_tokens).
* Opus 4.8 and Opus 4.7 support ONLY adaptive thinking (no extended thinking / budget_tokens).
* Opus 4.6 and Sonnet 4.6 support both extended and adaptive thinking — use adaptive.
* 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-4-8') ||
normalizedModel.includes('opus-4.8') ||
normalizedModel.includes('opus-4-7') ||
normalizedModel.includes('opus-4.7') ||
normalizedModel.includes('opus-4-6') ||
Expand All @@ -101,7 +103,7 @@ function supportsAdaptiveThinking(modelId: string): boolean {
/**
* Builds the thinking configuration for the Anthropic API based on model capabilities and level.
*
* - Opus 4.7: Uses adaptive thinking only (no extended thinking support)
* - Opus 4.8, Opus 4.7: Uses adaptive thinking only (no extended thinking support)
* - Opus 4.6, Sonnet 4.6: Uses adaptive thinking with effort parameter
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* - Other models: Uses budget_tokens-based extended thinking
*
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21 changes: 20 additions & 1 deletion apps/sim/providers/models.ts
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Expand Up @@ -582,6 +582,26 @@ export const PROVIDER_DEFINITIONS: Record<string, ProviderDefinition> = {
toolUsageControl: true,
},
models: [
{
id: 'claude-opus-4-8',
pricing: {
input: 5.0,
cachedInput: 0.5,
output: 25.0,
updatedAt: '2026-05-28',
},
capabilities: {
nativeStructuredOutputs: true,
maxOutputTokens: 128000,
thinking: {
levels: ['low', 'medium', 'high', 'xhigh', 'max'],
default: 'high',
},
},
contextWindow: 1000000,
releaseDate: '2026-05-27',
recommended: true,
},
{
id: 'claude-opus-4-7',
pricing: {
Expand All @@ -600,7 +620,6 @@ export const PROVIDER_DEFINITIONS: Record<string, ProviderDefinition> = {
},
contextWindow: 1000000,
releaseDate: '2026-04-16',
recommended: true,
},
{
id: 'claude-opus-4-6',
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