Last refreshed 2026-05-19. Next refresh: weekly.
Why use Claude Opus 4.1 on OpenRouter?
OpenRouter offers Claude Opus 4.1 with pay-as-you-go pricing at $15.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Claude Opus 4.1 across 5 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: anthropic/claude-opus-4.1anthropic/claude-opus-4.1Request example
anthropic/claude-opus-4.1.Gotchas
- Use provider model ID "anthropic/claude-opus-4.1", not the LLMReference slug "claude-opus-4-1".
Compare Claude Opus 4.1 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $15.00 | $75.00 |
| AWS Bedrock | $15.00 | $75.00 |
| OpenRouter | $15.00 | $75.00 |
| Microsoft Foundry | $15.00 | $75.00 |
| Vercel AI Gateway | $15.00 | $75.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $15.00 |
| Output tokens | $75.00 |
Capabilities
About Claude Opus 4.1
Claude Opus 4.1 is Anthropic's Claude 4 model. It offers a 200K-token context window and scores 77.1 on MMMU.
FAQ
What does Claude Opus 4.1 cost on OpenRouter?
On OpenRouter, Claude Opus 4.1 costs $15 per 1M input tokens and $75 per 1M output tokens.
What is the context window for Claude Opus 4.1 on OpenRouter?
Claude Opus 4.1 supports a 200k token context window on OpenRouter.
How does OpenRouter compare to other Claude Opus 4.1 providers?
Claude Opus 4.1 is available from 5 providers. The cheapest input pricing is $15/1M tokens from Anthropic.
What API model ID do I use for Claude Opus 4.1 on OpenRouter?
Use the model ID anthropic/claude-opus-4.1 when calling OpenRouter's API.
Who created Claude Opus 4.1?
Claude Opus 4.1 was created by Anthropic as part of the Claude 4 model family.
Is Claude Opus 4.1 open source?
Claude Opus 4.1 is not open source; the seed data lists it as proprietary.