1M
text, image, file
text
Supported
About this model
Claude Sonnet 5.5 is Anthropic's fast, highly capable hybrid reasoning model designed for coding, agentic workflows, computer use, knowledge work, and everyday professional tasks. It improves substantially over Sonnet 5 while generating outputs more than 30% faster and using fewer tokens to complete comparable work. The model supports configurable reasoning effort, long-running tool-driven workflows, image understanding, computer interaction, and complex multi-step execution. It is particularly suited to software engineering, iterative development, enterprise automation, document and spreadsheet creation, research, and high-volume agentic applications where a balance of capability, speed, and cost is important.
Input modalities
text
Accepted as model input
image
Accepted as model input
file
Accepted as model input
Providers
Available routing options for this model through OneInfer.
Input tokens
$2.000 / 1M tokens
Output tokens
$10.000 / 1M tokens
Routing
OneInfer optimized
Pricing
Current OneInfer pricing for this model.
| Usage | Price |
|---|---|
| Input tokens | $2.000 / 1M tokens |
| Output tokens | $10.000 / 1M tokens |
| Cached input tokens | $0.100 / 1M tokens |
Performance & Benchmarks
Independent evaluations and live cluster operational metrics
We haven’t measured this model yet. Published academic results are under Academic Evaluations.
API Guide
- 1
Generate your access token
Use your API key to generate the JWT access token required by the Models API.
- 2
Add the JWT token
Copy the generated JWT token and replace
JWT_TOKENin the example below. - 3
Check your credits
If your balance is too low, before calling the model.
- 4
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-sonnet-5.5", "messages": [ { "role": "user", "content": "Hello!" } ] }'
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