Claude Sonnet 4.5
Anthropic • API Price Comparison
Claude Sonnet 4.5 is a large language model by Anthropic with a 1M-token context window. Across the 1 API channels tracked here, input pricing ranges from $3.00 per 1M input tokens; the cheapest is OpenRouter at $3.00 per 1M input tokens. None of the tracked channels are directly reachable from mainland China without a proxy or VPN. Prices are collected daily from official provider pages and every tracked channel, then cross-checked by a data-accuracy audit.
| Channel | Type | Input / 1M | Output / 1M | Rate Limit | China | vs Official | |
|---|---|---|---|---|---|---|---|
OpenRouter8 variants💰 Best Price | 聚合平台 | $3.00 | $15.00 | - | - | - | |
Show all price variants for this channelOpenRouter Auto / default routeDefault $3.00 / $15.00 per 1M default_route Amazon Bedrock | anthropic/claude-4.5-sonnet-20250929 $3.00 / $15.00 per 1M upstream_provider Google | anthropic/claude-4.5-sonnet-20250929 $3.00 / $15.00 per 1M upstream_provider Claude Platform on AWS | anthropic/claude-4.5-sonnet-20250929 $3.00 / $15.00 per 1M upstream_provider Azure | anthropic/claude-4.5-sonnet-20250929 $3.00 / $15.00 per 1M upstream_provider Anthropic | anthropic/claude-4.5-sonnet-20250929 $3.00 / $15.00 per 1M upstream_provider Amazon Bedrock | anthropic/claude-4.5-sonnet-20250929 $3.30 / $16.50 per 1M upstream_provider Google | anthropic/claude-4.5-sonnet-20250929 $3.30 / $16.50 per 1M upstream_provider | |||||||
| Usage Level | Tokens/Month | OpenRouter |
|---|---|---|
| 🐣 Light | 0.1M in + 0.1M out | $1.05 |
| 📊 Medium | 1.0M in + 0.5M out | $10.50 |
| 🚀 Heavy | 10.0M in + 5.0M out | $105.00 |
| 🏢 Enterprise | 100.0M in + 50.0M out | $1,050.00 |
Frequently asked questions about claude-sonnet-4.5
What is the cheapest API provider for Claude Sonnet 4.5?
Of the channels tracked here, OpenRouter is the cheapest at $3.00 per 1M input tokens and $15.00 per 1M output tokens (about $3.00 per 1M input). Confirm on the provider's page; figures are updated daily.
Can I use Claude Sonnet 4.5 from mainland China?
None of the tracked channels are directly reachable from mainland China; reaching the official or international channels normally requires a proxy or VPN.
What is the context window of Claude Sonnet 4.5?
Claude Sonnet 4.5 offers a 1,000,000-token context window.
How often are Claude Sonnet 4.5 prices updated, and how reliable is the data?
Prices are scraped daily from official pricing pages and every tracked channel, with every significant change recorded in a price-history log. A daily read-only data audit cross-checks each channel against the model producer's published price and flags stale or inconsistent rows for correction.
Related pricing research