Anthropic: Claude Opus 5.5
Anthropic
Anthropic: Claude Opus 5.5 by Anthropic costs $4.00 per 1M input tokens and $20.00 per 1M output tokens, with a 1M-token context window.
Pricing
Input (per 1M tokens)
$4.00
Output (per 1M tokens)
$20.00
Cached input (per 1M)
$0.20
Specifications
- Provider
- Anthropic
- Context window
- 1M tokens
- Parameters
- —
- Released
- —
- Open weights
- —
- Frontier model
- No
Benchmarks
- GPQA Diamond
- 90.6
- LMArena Vision Elo
- 1320.5
- LMArena WebDev Elo
- 1811.2
Speed & latency
Time to first token
2.37s
Output speed
288 tok/s
Fastest host: anthropic (via vercel-ai-gateway).
Compare Anthropic: Claude Opus 5.5 with…
Anthropic: Claude Opus 5.5 vs Anthropic: Claude Haiku 5.5$0.50/1MAnthropic: Claude Opus 5.5 vs Anthropic: Claude Haiku 5.5 (batch)$0.25/1MAnthropic: Claude Opus 5.5 vs Anthropic: Claude Sonnet 5.5$10.00/1MAnthropic: Claude Opus 5.5 vs Anthropic: Claude Sonnet 5.5 (batch)$5.00/1MAnthropic: Claude Opus 5.5 vs Anthropic: Claude Opus 5$25.00/1MAnthropic: Claude Opus 5.5 vs Anthropic: Claude Opus 5 (batch)$12.50/1M
FAQ
How much does Anthropic: Claude Opus 5.5 cost?
Anthropic: Claude Opus 5.5 is priced at $4.00 per 1M input tokens and $20.00 per 1M output tokens. Output tokens cost more than input.
What is Anthropic: Claude Opus 5.5's context window?
Anthropic: Claude Opus 5.5 supports a context window of 1M tokens — the maximum prompt plus response length it can handle in a single request.
Is Anthropic: Claude Opus 5.5 open weight?
Open-weight status for Anthropic: Claude Opus 5.5 is not recorded in our dataset.
Data as of 2026-10-14. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.