Anthropic: Claude Opus 5
One API key. Live prices. Ready-to-run code.
Claude Opus 5 is Anthropic's flagship model designed for complex agentic coding and enterprise work, delivering intelligence close to Claude Fable 5 at half the price.
Served on OneInfer by Anthropic. Use it with the same API key and pay-as-you-go wallet as every other model in the catalog.
anthropic/claude-opus-5Call Claude Opus 5 in 4 steps
Create a key in the Console. The same key works for every model on OneInfer.
- Input tokens
- $5.000 / 1M tokens
- Output tokens
- $25.000 / 1M tokens
- Context
- 1M
- Input
- text, image
- Output
- text
- Tool calling
- Supported
About this model
Claude Opus 5 is Anthropic's flagship model designed for complex agentic coding and enterprise work, delivering intelligence close to Claude Fable 5 at half the price. It features a 1M token context window, adaptive thinking, and state-of-the-art performance on coding and knowledge work evaluations. It is optimized for bounded, complex tasks
Input modalities
text
Accepted as model input
image
Accepted as model input
Providers
Available routing options for this model through OneInfer.
- Available
- Input tokens
- $5.000 / 1M tokens
- Output tokens
- $25.000 / 1M tokens
- Routing
- OneInfer optimized
Pricing
Current OneInfer pricing for this model.
| Usage | Price |
|---|---|
| Input tokens | $5.000 / 1M tokens |
| Output tokens | $25.000 / 1M tokens |
| Cached input tokens | $0.500 / 1M tokens |
Performance and benchmarks
Independent evaluations and live cluster operational metrics
We haven’t measured this model yet. Published academic results are under Academic evaluations.
API guide
Generate your access token
Use your API key to generate the JWT access token required by the Models API.
Add the JWT token
Copy the generated JWT token and replace
JWT_TOKENin the example below.Check your credits
If your balance is too low, before calling the model.
Run the API example
Choose your preferred language, copy the example, and send your first model request.
curl https://api.oneinfer.ai/v1/ula/chat/completions \ -H "Authorization: Bearer $JWT_TOKEN" \ -H "Content-Type: application/json" \ -d '{ "model": "anthropic/claude-opus-5", "messages": [ { "role": "user", "content": "Hello!" } ] }'
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