Input
- Official Anthropic
- $4
- Here (−50%)
- $2
claude-opus-5-5
Claude Opus 5.5 API — price per token
Claude Opus 5.5 is Anthropic's September 2026 Opus for long-running agentic coding, priced below Opus 5, with cache reads at 5% of input.
Pricing per 1M tokens
| Rate | Official Anthropic | Here (−50%) |
|---|---|---|
| Input | $4 | $2 |
| Output | $20 | $10 |
| Cache read | $0.2 | $0.1 |
| Cache write (5m) | $5 | $2.5 |
Output
- Official Anthropic
- $20
- Here (−50%)
- $10
Cache read
- Official Anthropic
- $0.2
- Here (−50%)
- $0.1
Cache write (5m)
- Official Anthropic
- $5
- Here (−50%)
- $2.5
Every request is metered at the official rate first, then the flat 50% B2C discount is subtracted before it touches your prepaid balance. Context window: 1M tokens. Max output: 128K tokens.
Best for
- Long-running agentic coding and large refactors.
- Knowledge work that previously needed Opus 5.
- Cache-heavy sessions: cache reads are $0.20 per 1M tokens.
Good to know
- Official rates per 1M tokens: $4 input, $0.20 cache read, $5 5-minute cache write, $8 1-hour cache write, $20 output.
- Fast Mode is not served on this pool. A speed:fast request is refused with "Usage credits are required for fast mode."
- Adaptive thinking is always on. Thinking cannot be disabled, and forced tool_choice any/tool returns 400.
How to use Claude Opus 5.5
Create a free account, generate one key, and point any Anthropic-compatible tool at https://router.apitoken.sale with model ID claude-opus-5-5. Eligible new accounts include $5 of platform bonus credit — enough to test the model before topping up. Existing integrations on the legacy host https://api.apitoken.sale keep working.
Frequently asked questions
How much does the Claude Opus 5.5 API cost?
Officially $4 per 1M input tokens and $20 per 1M output tokens. Cache reads are $0.20, 5-minute cache writes $5, and 1-hour cache writes $8 per 1M. On apiToken.sale the flat 50% discount applies to every call: $2/$10.
What is the model ID for Claude Opus 5.5?
claude-opus-5-5. Use it unchanged with the Anthropic SDK, Claude Code, Cursor or any compatible tool pointed at https://router.apitoken.sale.
Opus 5.5 or Opus 5?
Opus 5.5 is the newer Opus and costs less: $4/$20 versus Opus 5's $5/$25, with cache reads at $0.20 instead of $0.50. New work should send claude-opus-5-5.
Run Claude Opus 5.5 on the same Anthropic API at a flat 50% off — instant key, prepaid balance, card or crypto.