Input
- Official Anthropic
- $2
- Here (−50%)
- $1
claude-sonnet-5-5
Claude Sonnet 5.5 API — price per token
Claude Sonnet 5.5 is Anthropic's September 2026 Sonnet and the default Sonnet in Claude Code, at the same token price as Sonnet 5.
Pricing per 1M tokens
| Rate | Official Anthropic | Here (−50%) |
|---|---|---|
| Input | $2 | $1 |
| Output | $10 | $5 |
| Cache read | $0.2 | $0.1 |
| Cache write (5m) | $2.5 | $1.25 |
Output
- Official Anthropic
- $10
- Here (−50%)
- $5
Cache read
- Official Anthropic
- $0.2
- Here (−50%)
- $0.1
Cache write (5m)
- Official Anthropic
- $2.5
- Here (−50%)
- $1.25
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
- Everyday coding and agent loops — the new Sonnet default.
- Agentic workflows where Opus cost is not justified.
- High-volume production API traffic.
Good to know
- Official rates per 1M tokens: $2 input, $0.20 cache read, $2.50 5-minute cache write, $4 1-hour cache write, $10 output — the same card as Sonnet 5.
- Adaptive thinking is on by default. thinking type "disabled" returns 400; send "between_tools" at high effort or below to turn off up-front thinking.
- Forced tool_choice any/tool and a non-default temperature, top_p or top_k return 400.
How to use Claude Sonnet 5.5
Create a free account, generate one key, and point any Anthropic-compatible tool at https://router.apitoken.sale with model ID claude-sonnet-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 Sonnet 5.5 API cost?
Officially $2 per 1M input tokens and $10 per 1M output tokens, the same as Sonnet 5. Cache reads are $0.20, 5-minute cache writes $2.50, and 1-hour cache writes $4 per 1M. apiToken.sale applies the flat 50% discount: $1/$5.
What is the model ID for Claude Sonnet 5.5?
claude-sonnet-5-5. Use it unchanged with the Anthropic SDK, Claude Code, Cursor, Cline or any compatible tool pointed at https://router.apitoken.sale.
Sonnet 5.5 or Sonnet 5?
Sonnet 5.5 is the newer Sonnet at the same price. Code that disables thinking or forces a tool must change first: send thinking type between_tools instead of disabled, and tool_choice auto instead of any/tool.
Run Claude Sonnet 5.5 on the same Anthropic API at a flat 50% off — instant key, prepaid balance, card or crypto.