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Claude Sonnet 5.5 is Anthropic's model offering the best combination of speed and intelligence, with a 1M-token context window, 128K max output, and adaptive thinking.
from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="deepinfra/anthropic/claude-sonnet-5-5", messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="deepinfra/anthropic/claude-sonnet-5-5", messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)Gateway routes for this model on the Respan gateway, including fallback routes when configured.
| Model | Capabilities | ||||||
|---|---|---|---|---|---|---|---|
| deepinfra/anthropic/claude-sonnet-5-5 | 1M | $2.00/M | $10.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
Other models from the same provider available through the gateway.
| Model | Capabilities | ||||||
|---|---|---|---|---|---|---|---|
| deepinfra/anthropic/claude-fable-5 | 1M | $10.00/M | $50.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
| deepinfra/anthropic/claude-haiku-4-5 | 200K | $1.00/M | $5.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
| deepinfra/anthropic/claude-opus-4-7 | 1M | $5.00/M | $25.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
| deepinfra/anthropic/claude-opus-4-8 | 1M | $5.00/M | $25.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
| deepinfra/anthropic/claude-opus-5 | 1M | $5.00/M | $25.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
| deepinfra/anthropic/claude-opus-5-5 | 1M | $4.00/M | $20.00/M | Read:$0.20/MWrite:$0.00/M | — | +2 | — |
| deepinfra/anthropic/claude-sonnet-4-6 | 1M | $3.00/M | $15.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
| deepinfra/anthropic/claude-sonnet-5 | 1M | $3.00/M | $15.00/M | Read:$0.00/MWrite:$0.00/M | — | +2 | — |
| deepinfra/deepseek-ai/DeepSeek-R1-0528 | 164K | $0.50/M | $2.15/M | Read:$0.35/MWrite:$0.00/M | 3.2s | 19tps | |
| deepinfra/deepseek-ai/DeepSeek-V3 | 164K | $0.32/M | $0.89/M | Read:$0.00/MWrite:$0.00/M | — | — | |
| deepinfra/deepseek-ai/DeepSeek-V3.1 | 164K | $0.25/M | $0.95/M | Read:$0.13/MWrite:$0.00/M | — | — | |
| deepinfra/deepseek-ai/DeepSeek-V3.2 | 164K | $0.26/M | $0.38/M | Read:$0.13/MWrite:$0.00/M | 2.8s | 10tps |
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Use Respan with your favorite frameworks and tools.