opus 4.1

src/shared/claude-4-1-validation.ts

@@ -0,0 +1,82 @@
+import { Request } from "express";
+
+/**
+ * Claude Opus 4.1 has stricter API validation that doesn't allow both temperature 
+ * and top_p parameters to be specified simultaneously. This function validates and 
+ * adjusts the request parameters for Claude Opus 4.1 models ONLY.
+ * 
+ * Rules:
+ * - If both parameters are at default values (1.0), omit top_p
+ * - If only one parameter is at default, omit the default one
+ * - If both are non-default, throw an error
+ */
+export function validateClaude41OpusParameters(req: Request): void {
+  const model = req.body.model;
+  
+  // Only apply this validation to Claude Opus 4.1 models
+  if (!isClaude41OpusModel(model)) {
+    return;
+  }
+  
+  const temperature = req.body.temperature;
+  const topP = req.body.top_p;
+  
+  // If neither parameter is specified, no validation needed
+  if (temperature === undefined && topP === undefined) {
+    return;
+  }
+  
+  // Default values for Claude API
+  const DEFAULT_TEMPERATURE = 1.0;
+  const DEFAULT_TOP_P = 1.0;
+  
+  const tempIsDefault = temperature === undefined || temperature === DEFAULT_TEMPERATURE;
+  const topPIsDefault = topP === undefined || topP === DEFAULT_TOP_P;
+  
+  // If both are at default values, omit top_p (keep temperature)
+  if (tempIsDefault && topPIsDefault) {
+    delete req.body.top_p;
+    req.log?.info("Claude Opus 4.1: Both temperature and top_p at default, omitting top_p");
+    return;
+  }
+  
+  // If only one is at default, omit the default one
+  if (tempIsDefault && !topPIsDefault) {
+    delete req.body.temperature;
+    req.log?.info("Claude Opus 4.1: Temperature at default, omitting temperature");
+    return;
+  }
+  
+  if (!tempIsDefault && topPIsDefault) {
+    delete req.body.top_p;
+    req.log?.info("Claude Opus 4.1: top_p at default, omitting top_p");
+    return;
+  }
+  
+  // If both are non-default, throw an error
+  if (!tempIsDefault && !topPIsDefault) {
+    throw new Error(
+      "Claude Opus 4.1 does not support both temperature and top_p parameters being set to non-default values simultaneously. " +
+      "Please specify only one of these parameters or set one to its default value (1.0)."
+    );
+  }
+}
+
+/**
+ * Checks if the given model is a Claude Opus 4.1 model.
+ * This includes all provider formats for Claude Opus 4.1 ONLY.
+ */
+function isClaude41OpusModel(model: string): boolean {
+  if (!model) return false;
+  
+  // Anthropic API format
+  if (model.includes("claude-opus-4-1")) return true;
+  
+  // AWS Bedrock format
+  if (model.includes("anthropic.claude-opus-4-1")) return true;
+  
+  // GCP Vertex AI format
+  if (model.includes("claude-opus-4-1@")) return true;
+  
+  return false;
+}

src/shared/claude-models.ts

@@ -19,16 +19,22 @@ export const claudeModels: ClaudeModelMapping[] = [
   { awsId: "anthropic.claude-3-opus-20240229-v1:0", anthropicId: "claude-3-opus-latest", displayName: "Claude 3 Opus (Latest)" },
   { awsId: "anthropic.claude-sonnet-4-20250514-v1:0", anthropicId: "claude-sonnet-4-20250514", displayName: "Claude 4 Sonnet" },
   { awsId: "anthropic.claude-sonnet-4-20250514-v1:0", anthropicId: "claude-sonnet-4-latest", displayName: "Claude 4 Sonnet (Latest)" },
-  { awsId: "anthropic.claude-opus-4-20250514-v1:0", anthropicId: "claude-opus-4-20250514", displayName: "Claude 4 Opus" },
-  { awsId: "anthropic.claude-opus-4-20250514-v1:0", anthropicId: "claude-opus-4-latest", displayName: "Claude 4 Opus (Latest)" },
+  { awsId: "anthropic.claude-opus-4-20250514-v1:0", anthropicId: "claude-opus-4-20250514", displayName: "Claude 4.0 Opus" },
+  { awsId: "anthropic.claude-opus-4-1-20250805-v1:0", anthropicId: "claude-opus-4-1-20250805", displayName: "Claude 4.1 Opus" },
+  { awsId: "anthropic.claude-opus-4-1-20250805-v1:0", anthropicId: "claude-opus-4-latest", displayName: "Claude 4 Opus (Latest)" },
+  { awsId: "anthropic.claude-opus-4-1-20250805-v1:0", anthropicId: "claude-opus-4-1", displayName: "Claude 4.1 Opus" },
   { awsId: "anthropic.claude-sonnet-4-20250514-v1:0", anthropicId: "claude-sonnet-4-0", displayName: "Claude 4 Sonnet" },
-  { awsId: "anthropic.claude-opus-4-20250514-v1:0", anthropicId: "claude-opus-4-0", displayName: "Claude 4 Opus" },
+  { awsId: "anthropic.claude-opus-4-20250514-v1:0", anthropicId: "claude-opus-4-0", displayName: "Claude 4.0 Opus" },
 ];
 
 export function findByAwsId(awsId: string): ClaudeModelMapping | undefined {
   return claudeModels.find(model => model.awsId === awsId);
 }
 
+export function findByAnthropicId(anthropicId: string): ClaudeModelMapping | undefined {
+  return claudeModels.find(model => model.anthropicId === anthropicId);
+}
+
 export function getAllClaudeModels(): ClaudeModelMapping[] {
   return claudeModels;
 } 

src/shared/key-management/aws/checker.ts

@@ -27,6 +27,7 @@ const KNOWN_MODEL_IDS: ModuleAliasTuple[] = [
   ["anthropic.claude-3-7-sonnet-20250219-v1:0"],
   ["anthropic.claude-sonnet-4-20250514-v1:0"],
   ["anthropic.claude-opus-4-20250514-v1:0"],
+  ["anthropic.claude-opus-4-1-20250805-v1:0"],
   ["mistral.mistral-7b-instruct-v0:2"],
   ["mistral.mixtral-8x7b-instruct-v0:1"],
   ["mistral.mistral-large-2402-v1:0"],

src/shared/key-management/aws/provider.ts

@@ -3,6 +3,7 @@ import { config } from "../../../config";
 import { logger } from "../../../logger";
 import { PaymentRequiredError } from "../../errors";
 import { AwsBedrockModelFamily, getAwsBedrockModelFamily } from "../../models";
+import { findByAnthropicId } from "../../claude-models";
 import { createGenericGetLockoutPeriod, Key, KeyProvider } from "..";
 import { prioritizeKeys } from "../prioritize-keys";
 import { AwsKeyChecker } from "./checker";
@@ -96,6 +97,15 @@ export class AwsBedrockKeyProvider implements KeyProvider<AwsBedrockKey> {
     // Claude 2 is the only model that breaks this convention; Anthropic calls
     // it claude-2 but AWS calls it claude-v2.
     if (model.includes("claude-2")) neededVariantId = "claude-v2";
+    
+    // For Claude models, try to resolve aliases to AWS model IDs
+    if (model.includes("claude") && !model.includes("anthropic.")) {
+      const claudeMapping = findByAnthropicId(model);
+      if (claudeMapping) {
+        neededVariantId = claudeMapping.awsId;
+      }
+    }
+    
     const neededFamily = getAwsBedrockModelFamily(model);
 
     const availableKeys = this.keys.filter((k) => {

src/shared/key-management/gcp/checker.ts

@@ -42,19 +42,20 @@ export class GcpKeyChecker extends KeyCheckerBase<GcpKey> {
         this.invokeModel("claude-3-haiku@20240307", key, true),
         this.invokeModel("claude-3-sonnet@20240229", key, true),
         this.invokeModel("claude-3-opus@20240229", key, true),
+        this.invokeModel("claude-opus-4-1@20250805", key, true),
         this.invokeModel("claude-3-5-sonnet-v2@20241022", key, true),
       ];
 
-      const [sonnet, haiku, opus, sonnet35] = await Promise.all(checks);
+      const [sonnet, haiku, opus3, opus41, sonnet35] = await Promise.all(checks);
 
       this.log.debug(
-        { key: key.hash, sonnet, haiku, opus, sonnet35 },
+        { key: key.hash, sonnet, haiku, opus3, opus41, sonnet35 },
         "GCP model initial tests complete."
       );
 
       const families: GcpModelFamily[] = [];
       if (sonnet || sonnet35 || haiku) families.push("gcp-claude");
-      if (opus) families.push("gcp-claude-opus");
+      if (opus3 || opus41) families.push("gcp-claude-opus");
 
       if (families.length === 0) {
         this.log.warn(
@@ -81,6 +82,7 @@ export class GcpKeyChecker extends KeyCheckerBase<GcpKey> {
         await this.invokeModel("claude-3-5-sonnet-v2@20241022", key, false);
       } else {
         await this.invokeModel("claude-3-opus@20240229", key, false);
+        await this.invokeModel("claude-opus-4-1@20250805", key, false);
       }
 
       this.updateKey(key.hash, { lastChecked: Date.now() });