Claude Opus 4.1
Claude Opus 4.1 is a legacy integration reference; evaluate Claude Opus 4.8 before starting new work.
Use it for
- Teams maintaining an existing integration
- Workloads that can use a 200k context window
- Buyers comparing 2 tracked provider routes
Do not use it for
- New production launches
- Family
- Claude 4
- Released
- 2025-08-01
- Context
- 200k
- Knowledge cutoff
- 2025-03
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
Cheapest of 5 routes · Microsoft Foundry · cache read $1.50
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.
Claude Opus 4.1 is a proprietary model in the Claude 4 family. The structured metadata tracks a 200k-token context window, multimodal input, and structured outputs. This page tracks provider routes through Anthropic, AWS Bedrock, OpenRouter, and 2 more, with the cheapest tracked route listed at $15 input and $75 output per 1M tokens. Headline tracked benchmarks include Massive Multi-discipline Multimodal Understanding 77.1.
Top use-case fit
RAG
Included by capability and metadata signals in the decision map.
Long context
Included by capability and metadata signals in the decision map.
Vision
1 relevant benchmark in the decision map.
Provider price ladder
Compare all 5Compare 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
GatewayOpen-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.
OpenRouter
HybridUnified 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.
Portkey
GatewayProduction 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.
AIRouter
RouterCommercial 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.
Amazon Bedrock Intelligent Prompt Routing
RouterAWS 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.
Azure AI Foundry Model Router
RouterMicrosoft 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.
Capabilities
Benchmark peer barsfor Vision
Benchmark scores(1)
| Benchmark | Score | Version | Source |
|---|---|---|---|
| Massive Multi-discipline Multimodal Understanding | 77.1 | — | https://mmmu-benchmark.github.io/ |
Migration checks
No linked migration route is available for this model yet.
Frequently asked questions
What is the context window of Claude Opus 4.1?
Claude Opus 4.1 has a context window of 200k tokens.
How much does Claude Opus 4.1 cost?
Claude Opus 4.1 is available at $15/1M input tokens through Anthropic.
When was Claude Opus 4.1 released?
Claude Opus 4.1 was released on 2025-08-01.
Which providers offer Claude Opus 4.1?
Claude Opus 4.1 is available from 5 providers: Anthropic, AWS Bedrock, OpenRouter, Microsoft Foundry, Vercel AI Gateway.
What benchmarks has Claude Opus 4.1 been tested on?
Claude Opus 4.1 has been evaluated on 1 benchmark, including Massive Multi-discipline Multimodal Understanding.
Cheapest of 5 routes · Microsoft Foundry · cache read $1.50