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Use Respan with your favorite frameworks and tools.
Claude Sonnet 5.5 balances strong reasoning and speed for everyday coding, analysis, and production assistants where cost and latency matter. Claude Sonnet 5.5 balances strong reasoning and speed for everyday coding, analysis, and production assistants where cost and latency matter. Supports tool use, vision (image), explicit caching, and implicit caching. Up to 1M context window.
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="openrouter/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="openrouter/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 | ||||||
|---|---|---|---|---|---|---|---|
| openrouter/anthropic/claude-sonnet-5.5 | 1M | $2.00/M | $10.00/M | Read:$0.20/MWrite:$2.50/M | — | +2 | — |
Other models from the same provider available through the gateway.
| Model | Capabilities | ||||||
|---|---|---|---|---|---|---|---|
| openrouter/~anthropic/claude-fable-latest | 1M | $10.00/M | $50.00/M | Read:$0.25/MWrite:$12.50/M | 3.2s | +2 | 4tps |
| openrouter/~anthropic/claude-haiku-latest | 200K | $1.00/M | $5.00/M | Read:$0.10/MWrite:$1.25/M | 0.7s | +2 | 23tps |
| openrouter/~anthropic/claude-opus-latest | 1M | $4.00/M | $20.00/M | Read:$0.20/MWrite:$5.00/M | 3.4s | +2 | 16tps |
| openrouter/~anthropic/claude-sonnet-latest | 1M | $2.00/M | $10.00/M | Read:$0.20/MWrite:$2.50/M | 7.0s | +2 | 67tps |
| openrouter/~deepseek/deepseek-flash-latest | 1.0M | $0.02/M | $0.60/M | Read:$0.02/MWrite:$0.00/M | 2.0s | +2 | 25tps |
| openrouter/~deepseek/deepseek-pro-latest | 1.0M | $0.15/M | $3.50/M | Read:$0.15/MWrite:$0.00/M | 2.0s | 13tps | |
| openrouter/~deepseek/deepseek-v4-flash-latest | 1.3M | $0.01/M | $1.25/M | Read:$0.01/MWrite:$0.00/M | 11s | 130tps | |
| openrouter/~google/gemini-flash-latest | 1.0M | $0.75/M | $3.75/M | Read:$0.07/MWrite:$0.04/M | 1.7s | +2 | 43tps |
| openrouter/~google/gemini-pro-latest | 1.0M | $2.00/M | $12.00/M | Read:$0.20/MWrite:$0.38/M | 2.1s | +2 | 29tps |
| openrouter/~moonshotai/kimi-latest | 1.0M | $0.40/M | $10.00/M | Read:$0.40/MWrite:$0.00/M | 2.4s | +2 | 27tps |
| openrouter/~openai/gpt-astra-latest | 1.1M | $10.00/M | $50.00/M | Read:$1.00/MWrite:$12.50/M | 1.8s | +2 | 6tps |
| openrouter/~openai/gpt-luna-latest | 1.1M | $0.10/M | $0.50/M | Read:$0.01/MWrite:$0.13/M | 0.9s | +2 | 15tps |
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Use Respan with your favorite frameworks and tools.