From 6e3799bd992591c601fd4d942a841f2fb1d9f06e Mon Sep 17 00:00:00 2001
From: Waleed Latif <walif6@gmail.com>
Date: Thu, 28 May 2026 10:59:29 -0700
Subject: [PATCH 1/2] feat(providers): add Claude Opus 4.8 model

---
 apps/sim/providers/anthropic/core.ts |  4 +++-
 apps/sim/providers/models.ts         | 21 ++++++++++++++++++++-
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/apps/sim/providers/anthropic/core.ts b/apps/sim/providers/anthropic/core.ts
index 80f741f4ac..6dd00c8275 100644
--- a/apps/sim/providers/anthropic/core.ts
+++ b/apps/sim/providers/anthropic/core.ts
@@ -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') ||
diff --git a/apps/sim/providers/models.ts b/apps/sim/providers/models.ts
index 375506cde2..6c98ea3623 100644
--- a/apps/sim/providers/models.ts
+++ b/apps/sim/providers/models.ts
@@ -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: {
@@ -600,7 +620,6 @@ export const PROVIDER_DEFINITIONS: Record<string, ProviderDefinition> = {
         },
         contextWindow: 1000000,
         releaseDate: '2026-04-16',
-        recommended: true,
       },
       {
         id: 'claude-opus-4-6',

From 1183424fcac79e492193cdfce50c789ab5e8694d Mon Sep 17 00:00:00 2001
From: Waleed Latif <walif6@gmail.com>
Date: Thu, 28 May 2026 11:01:24 -0700
Subject: [PATCH 2/2] chore(providers): update buildThinkingConfig docstring
 for Opus 4.8

---
 apps/sim/providers/anthropic/core.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/sim/providers/anthropic/core.ts b/apps/sim/providers/anthropic/core.ts
index 6dd00c8275..c265d1e903 100644
--- a/apps/sim/providers/anthropic/core.ts
+++ b/apps/sim/providers/anthropic/core.ts
@@ -103,7 +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
  * - Other models: Uses budget_tokens-based extended thinking
  *