TopxAI · Model prices · Anthropic
Claude Opus 5.5 API pricing
Model id claude-opus-5-5. $2 input / $10 output per 1M tokens on the lowest-priced route; every route is listed below. Prices are fixed in USD, charged from prepaid credit, and every request writes one usage-log row with the route and the charge.
Claude Opus 5.5: high-capability model for complex analysis and long-running agent tasks with a 1M-token context.
Prices by route
| Route | Input (USD / 1M tokens) | Output (USD / 1M tokens) | Cache read (USD / 1M tokens) | Cache write (USD / 1M tokens) | Cache write (1h) (USD / 1M tokens) |
|---|---|---|---|---|---|
| Provider list price (checked 2026-09-24) | $4 | $20 | $0.2 | $5 | $8 |
| Official line | $3.6 | $18 | $0.18 | $4.5 | $7.2 |
| Shared pool | $2 | $10 | $0.1 | $2.5 | $4 |
Input, output and cache lanes bill per million tokens. A whole-request long-context row applies once the input context of a request reaches the threshold shown. An Auto-route key sends each request to the lowest-priced route that serves the model.
Endpoints
POST /v1/messages: Anthropic Messages (x-api-key)POST /v1/chat/completions: OpenAI Chat Completions (Bearer)
Call claude-opus-5-5
Base URL https://ai.topxea.com/v1 for OpenAI-style SDKs, https://ai.topxea.com for the Anthropic SDK; the API key goes where the provider's key would go.
curl https://ai.topxea.com/v1/messages \
-H "x-api-key: $TOPXAI_API_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "content-type: application/json" \
-d '{"model": "claude-opus-5-5", "max_tokens": 256, "messages": [{"role": "user", "content": "Say hello in one sentence."}]}'Related
- Claude Code with TopxAI: ANTHROPIC_BASE_URL and the key
- LobeChat with TopxAI: the OpenAI proxy address
- Connect your SDK
- Shared pool, official line and auto route
- How requests are billed
- Every model's price
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