Text model
Claude Sonnet 4.5
anthropic/claude-sonnet-4.5
anthropic/claude-sonnet-4.5 is a language model from Anthropic you can call on the OceanToken API at $3.00 per 1M input tokens and $15.00 per 1M output tokens, with a 200K-token context window and up to 64K output tokens; it supports reasoning, tool calling, image input.
At a glance
| Model ID | anthropic/claude-sonnet-4.5 |
|---|---|
| Type | Text |
| Publisher | Anthropic |
| Context window | 200,000 tokens |
| Max output | 64,000 tokens |
| Input price | $3.00 per 1M tokens |
| Output price | $15.00 per 1M tokens |
| Cached input price | $0.30 per 1M tokens |
| Cache write price | $3.75 per 1M tokens (1-hour cache: $6.00) |
| Capabilities | reasoning, tool calling, image input |
| Endpoint | /v1/chat/completions, /v1/responses |
| API shape | OpenAI-compatible, or Anthropic Messages (/v1/messages) |
| In the catalog since | 2025-09-29 |
Call it
Base URL https://api.oceantoken.ai/v1, your OceanToken key as the bearer token, and the model ID above as model. The OpenAI SDKs work unchanged; see your first request.
curl https://api.oceantoken.ai/v1/chat/completions \
-H "Authorization: Bearer $OCEANTOKEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "anthropic/claude-sonnet-4.5", "messages": [{"role": "user", "content": "Hello"}]}'
Compared with similar models
Text models on OceanToken closest to anthropic/claude-sonnet-4.5 in price. Every price is what you pay, in US dollars, with no platform fee on top.
| Model | Publisher | Context | Price (per 1M tokens) |
|---|---|---|---|
| Claude Sonnet 4.5 | Anthropic | 200,000 | $3.00 / $15.00 |
Kimi K3moonshotai/kimi-k3 | Moonshot AI | 1.05M | $3.00 / $15.00 |
GPT-4o 2024.05 13openai/gpt-4o-2024-05-13 | OpenAI | 128K | $5.00 / $15.00 |
GPT-5.4openai/gpt-5.4 | OpenAI | 1.05M | $2.50 / $15.00 |
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anthropic/claude-opus-4.1 - Claude Opus 4.5
anthropic/claude-opus-4.5 - Claude Opus 4.6
anthropic/claude-opus-4.6
All Anthropic models on OceanToken
Use it
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Prices and capabilities on this page were read from the live OceanToken catalog on 2026-10-18 (UTC), when the documentation was built. If a price has changed since, the console's Models page shows the current one.