Claude Sonnet 4.6
Anthropic
February 2026 Sonnet release offering the best combination of speed and intelligence, with a 1M-token context window at standard pricing and both extended and adaptive thinking. The recommended balanced model for most production workloads.
Strengths
- Best balance of speed and intelligence in the Claude lineup
- 1M-token context window at standard pricing
- Both extended and adaptive thinking supported
- Strong agentic coding at Sonnet pricing ($3/$15)
Caveats
- Opus 4.7 remains stronger for the most complex agentic coding
- 64K max output is lower than Opus 4.6/4.7's 128K
- Vendor
- Anthropic
- Context Window
- 1,000,000 tokens
- Max Output
- 64,000 tokens
- License
- Proprietary
- Release Date
- 2026-02-17
- Training Cutoff
- 2026-01-31
- Modalities
- textimage
Capabilities
Vision
Audio
Video
Tool Use
Resources
Pricing
$3 per 1M input tokens, $15 per 1M output tokens; full 1M-token context at standard pricing. Prompt caching and Batch API (50% off) available.