Claude Opus 4.1

Name: Claude Opus 4.1
Author: Anthropic

Released

2025-08-01

Last refreshed

2026-07-26

Status

Researched 108d ago

DeprecatedProprietaryCommercial use: conditionalMultimodalRAGLong contextVisionJSON / Tool use

Claude Opus 4.1 is a legacy integration reference; evaluate Claude Opus 4.8 before starting new work.

Anthropic releases · 17 in the last 12 monthsChangelog →

Specifications

Family: Claude 4
Released: 2025-08-01
Context: 200k
Knowledge cutoff: 2025-03
Openness: Proprietary
License: ProprietaryCommercial use: conditional
Weights: Not released
Code: Unknown

Created by

Anthropic

Developing safe and ethical AI systems.

San Francisco, California, United States

Founded 2021

Website

Pricing

Output / 1M

$75.00

Input / 1M

$15.00

Cheapest of 5 routes · Microsoft Foundry · cache read $1.50

Providers(5)

Anthropic AWS Bedrock OpenRouter Microsoft Foundry Vercel AI Gateway

View 5 provider routes

This model is deprecated. Anthropic recommends switching to Claude Opus 4.8.

About

Claude Opus 4.1 is Anthropic's Claude 4 model. It offers a 200K-token context window and scores 77.1 on MMMU.

Provider price ladder

Compare all 5

Compare API pricing across 2 providers for input and output tokens, batch, and cached reads when available.

Provider	Input / 1M	Output / 1M	Cache	Route
Microsoft Foundry	$15.00	$75.00	read $1.50 / 5m $18.75 / 1h $30.00	Serverless
Vercel AI Gateway	$15.00	$75.00	read $1.50	Serverless

Available via routers & gateways(16)

LiteLLM

Gateway

Open-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.

Free OSSAnthropicMicrosoft Foundry

OpenRouter

Hybrid

Unified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.

PassthroughAnthropic

Portkey

Gateway

Production AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.

SubscriptionAnthropicMicrosoft Foundry

AIRouter

Router

Commercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.

Passthrough + feeAnthropic

Amazon Bedrock Intelligent Prompt Routing

Router

AWS Bedrock's native intelligent prompt router that routes prompts between Anthropic Claude model tiers (Haiku/Sonnet) based on predicted task complexity, with no extra per-routing charge.

PassthroughAWS Bedrock

Azure AI Foundry Model Router

Router

Microsoft Azure AI Foundry's native model router that uses a trained ML model to route each prompt in real time to the optimal Azure-hosted model, with Balanced/Cost/Quality mode selection and automatic failover.

PassthroughMicrosoft Foundry

Capabilities

VisionMultimodalStructured Outputs

Benchmark peer barsfor Vision

Massive Multi-discipline Multimodal UnderstandingRank 18 of 46

Qwen3.6-Plus

86.0

ByteDance Doubao Seed 2.0 Pro

85.4

Qwen3.5-397B-A17B

85.0

Gemini 3.5 Flash

83.6

Claude Opus 4.1current

77.1

Benchmark scores(1)

Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.