Anthropic: Claude Sonnet 4.5
anthropic/claude-sonnet-4.5Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
- Context window
- 1,000,000 tokens
- Input
- text · image · file
- Output
- text
- Relay support
- Text & vision
Reference prices & points
Our global markup: 15% · 1 USD = 10,000 points · Price version 0
| Billing unit | OpenRouter / USD | Our reference / USD | Points |
|---|---|---|---|
| Input / 1M tokens | $3 | $3.45 | 34,500 |
| Output / 1M tokens | $15 | $17.25 | 172,500 |
| Per search | $0.01 | $0.0115 | 115 |
| Cache read / 1M tokens | $0.3 | $0.345 | 3,450 |
| Cache write / 1M tokens | $3.75 | $4.3125 | 43,125 |
| 1h cache write / 1M tokens | $6 | $6.9 | 69,000 |
Actual charge = the OpenRouter request cost × the markup locked for that request. Catalogue rates may be routing references; caching, long context, images and audio are charged when used. Listed prices do not mean every capability is available through this relay.
Catalogue time: 2026-11-11T23:55:39.885Z · Live catalogue
View upstream pricing tiers
These are raw upstream pricing conditions without our markup. The final charge is multiplied by the site rate.
[
{
"min_prompt_tokens": 200000,
"prompt": "0.000006",
"completion": "0.0000225",
"input_cache_read": "0.0000006",
"input_cache_write": "0.0000075",
"input_cache_write_1h": "0.000012"
}
]View all upstream price fields
{
"prompt": "0.000003",
"completion": "0.000015",
"web_search": "0.01",
"input_cache_read": "0.0000003",
"input_cache_write": "0.00000375",
"input_cache_write_1h": "0.000006",
"overrides": [
{
"min_prompt_tokens": 200000,
"prompt": "0.000006",
"completion": "0.0000225",
"input_cache_read": "0.0000006",
"input_cache_write": "0.0000075",
"input_cache_write_1h": "0.000012"
}
]
}Integration & availability
Use /v1/chat/completions for non-streaming, multi-turn conversations. Models marked for vision accept images; documents can be extracted to text in the workspace. Create a site API key and ensure you have enough points and the service is enabled. Provider availability, context and budget limits apply.