Claude Sonnet 5
Anthropic · Released Jun 30, 2026
$2
Input price / MTok
#17 of 27$10
Output price / MTok
#19 of 271.0M
Context window
#5 of 2879
Tokens / sec
#15 of 2163.2
SWE-bench Pro
#3 of 981.2
OSWorld
#3 of 8Summary
Claude Sonnet 5 is a proprietary language model from Anthropic, released on Jun 30, 2026.
At $2 input and $10 output per million tokens, it ranks #17 of 27 for input price, placing it mid-range on input cost.
Its context window of 1.0M tokens ranks #5 of 28 for context depth in this dataset.
It targets coding, agents, reasoning workloads.
Throughput is measured at 79 tokens per second (ranked #15 of 21 for throughput).
Default model for Claude Free and Pro plans; adaptive thinking always on.
Benchmarks
| Benchmark | Score | Max | % | Rank | Source |
|---|---|---|---|---|---|
| SWE-bench Pro | 63.2 | 100 | 63.2% | #3/9 | Anthropic (self-reported in launch annou... |
| OSWorld | 81.2 | 100 | 81.2% | #3/8 | Anthropic (self-reported in launch annou... |
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Speed source: https://artificialanalysis.ai/models/claude-sonnet-5