Claude Opus 5.5 API
claude-opus-5-5AnthropicCommercial useNew API verifiedText & reasoning
Anthropic's Claude Opus 5.5 — frontier reasoning for complex coding, research and agentic work, served through one API.
by Anthropic
Pricing: Input 144 credits / 1M tokens (≈ $1.44), Output 720 credits / 1M tokens (≈ $7.2). Cached Input 7.2 credits / 1M tokens (≈ $0.072), Cache Writes 180 credits / 1M tokens (≈ $1.8) — applied automatically when the upstream reports cached tokens for your prompt; there is no field to request them.
Save up to 67%with the $1,250 top-up pack (+10% bonus) — 64% lower than direct rates even without itTop up24H Status Monitor
Operational24h agonow
MODEL
claude-opus-5-5
Tools
Web Search
Web search feeds the results back as input tokens, so a searched turn typically costs many times a normal turn (measured: 6–87×). Billed per token as usual — nothing extra per search.
Max tokens
Stream Response
Start a conversation with Claude Opus 5.5
Input 144 · Output 720 cr / 1M · billed per token
You only pay for successful generations — if a task fails or returns no result, its credits are refunded automatically, never charged. And your credits never expire: top up once and spend at your own pace.1 credit = $0.01 USDTop up $1,250 for +10% bonus credits → up to ~9% more off every call.Top up credits
Claude Opus 5.5 API pricing4 prices
Model & ModalityCredits / GenOur Price (USD)Direct / Standard Price (USD)Base savingsSavings with top-up$1,250 top-up · +10% credits
Claude Opus 5.5, Input
textAnthropic
Credits / Gen144per million tokens
Our Price (USD)$1.44
Direct / Standard Price (USD)$4
Base savings−64.0%
Savings with top-up · $1,250 · +10%−67% ↓
Claude Opus 5.5, Output
textAnthropic
Credits / Gen720per million tokens
Our Price (USD)$7.2
Direct / Standard Price (USD)$20
Base savings−64.0%
Savings with top-up · $1,250 · +10%−67% ↓
Claude Opus 5.5, Cache Writes
textAnthropic
Credits / Gen180per million tokens
Our Price (USD)$1.8
Direct / Standard Price (USD)$5
Base savings−64.0%
Savings with top-up · $1,250 · +10%−67% ↓
Claude Opus 5.5, Cached Input
textAnthropic
Credits / Gen7.2per million tokens
Our Price (USD)$0.072
Direct / Standard Price (USD)$0.2
Base savings−64.0%
Savings with top-up · $1,250 · +10%−67% ↓
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