Last refreshed 2026-05-19. Next refresh: weekly.
Why use Claude Opus 4.1 on Anthropic?
Anthropic offers Claude Opus 4.1 with pay-as-you-go pricing at $15.00/1M input tokens. Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.
Compare Claude Opus 4.1 across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install anthropicexport ANTHROPIC_API_KEY=...import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-opus-4-1",claude-opus-4-1Request example
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-opus-4-1",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)Gotchas
- Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
- The examples expect ANTHROPIC_API_KEY; rename it only if your application config maps the new variable.
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 |
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 Anthropic?
On Anthropic, 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 Anthropic?
Claude Opus 4.1 supports a 200,000 token context window on Anthropic.
How does Anthropic compare to other Claude Opus 4.1 providers?
Claude Opus 4.1 is available from 4 providers. The cheapest input pricing is $15/1M tokens from Anthropic.
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.