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Anthropic · Claude Opus 4
Claude Opus 4.5
Routed · non-EEA200K contextProprietary€13.80 / €69.00 per 1MThinkingTool UseJSON ModeStreaming
Endpoints by sovereignty lane
1 activeSame model, one lane, your call. Sovereign first, then European-hosted, then routed (typically non-EU). Default endpoint per lane is highlighted.
Routed · 1
From €41.40 / M blended| Provider | Input / M | Output / M | Status |
|---|---|---|---|
AnthropicDefault | €13.80 | €69.00 | Active |
Get started
Anthropic Messages — drop in your slug
Stav speaks the Anthropic Messages API. Point the Anthropic SDK at base_url="https://api.stav.ai/v1" and your existing code keeps working — including cache_control markers and thinking mode, which pass through to Anthropic verbatim. Set STAV_API_KEY and the curl below works.
bash
curl https://api.stav.ai/v1/messages \
-H "Authorization: Bearer $STAV_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-4-5-20251101",
"max_tokens": 256,
"messages": [{"role": "user", "content": "Hello!"}]
}'Already using the OpenAI SDK? The same model is reachable at — drop in the slug above as the field and it works.