OpenRouter
Catalog quote- Input
- $1.50
- Output
- $7.50
- Cached input
- $0.15
anthropicListed Sep 29, 2025
Anthropic: Claude Sonnet 4.5 (batch)
Claude 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 window1M
Max output64K
Provider endpoints2
Benchmark results0
Measured performance
All leaderboards ↗Benchmark results
No published results in this index yet
Scores appear here when an evaluation matches this exact model.
Access & cost
3 quotesPrices across providers
- Input
- $1.50
- Output
- $7.50
- Cached input
- $0.15
Cache write $1.875/M tokens · 1h cache write $3/M tokens · Web search $0.01/search
- Input
- $3.00
- Output
- $11.25
- Cached input
- $0.30
Cache write $3.75/M tokens · 1h cache write $6/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.
Model specifications
- Developer
- anthropic
- Modality
- Language
- Context
- 1,000,000 tokens
- Maximum output
- 64,000 tokens
- Weights
- Not reported
- Provider listed
- Sep 29, 2025
- First discovered
- Oct 16, 2026
More from anthropic
View all ↗anthropicListed 9 days ago
Anthropic: Claude Haiku 5.5
Adds adjustable effort to the Haiku tier for compaction, browser tasks and narrowly scoped subagents.
1M contextImage inputTool callingNo reported score
No reported score
$0.10in$0.50out/ 1M tokens · USDAmazon Bedrock · via OpenRouter · 12 endpointsamazon-bedrock · prompt ≤ 100000 tokens
anthropicListed 9 days ago
Anthropic: Claude Haiku 5.5 (batch)
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
1M contextImage inputTool callingNo reported score
No reported score
$0.05in$0.25out/ 1M tokens · USDAnthropic · via OpenRouter · 2 endpointsanthropic · prompt ≤ 100000 tokens
anthropicListed 19 days ago
Anthropic: Claude Sonnet 5.5 (batch)
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...
1M contextImage inputTool callingNo reported score
No reported score
anthropicReleased 19 days ago
Anthropic: Claude Sonnet 5.5
Tuned for quick iteration on scoped fixes and documents; Anthropic favors Opus 5.5 for open-ended work needing sustained judgment.
1M contextImage inputTool calling