Claude Sonnet 4 API
ANTHROPIC · Chat, Vision · 200K context
from $2.25 / 1M input tokens -25% vs OpenRouter
Claude Sonnet 4 by Anthropic offers 200K context with exceptional reasoning and coding abilities. TokenSail provides Claude Sonnet 4 API at $2.25/1M input tokens — 25% below the official $3.00. Access top-tier Anthropic AI through TokenSail's unified OpenAI-compatible gateway.
Pricing Comparison
| Provider | Input / 1M tokens | Output / 1M tokens | Savings |
|---|---|---|---|
| TokenSail | $2.25 | $11.25 | — |
| OpenRouter | $3.00 | $15.00 | -25% |
| Official | $3.00 | $15.00 | -25% |
Quick Start
from openai import OpenAI
client = OpenAI(
base_url="https://api.tokensail.ai/v1",
api_key="YOUR_TOKENSAIL_API_KEY"
)
response = client.chat.completions.create(
model="claude-sonnet-4",
messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)Specifications
- Provider: ANTHROPIC
- Context Window: 200K
- Capabilities: Chat, Vision
- API Endpoint: POST https://api.tokensail.ai/v1/chat/completions
- Model ID: claude-sonnet-4