Anthropic
Anthropic's latest Sonnet model, balancing frontier agentic coding, tool use, computer use, reasoning, and knowledge work with lower cost than the Opus tier.
Anthropic's latest Sonnet model, balancing frontier agentic coding, tool use, computer use, reasoning, and knowledge work with lower cost than the Opus tier.
61.2
Quality Score
1267
Arena ELO
Undisclosed
Parameters
1M
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
19 of 22 public signals
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Jun 2026
Released
4/5 signals
4/4 signals
5/5 signals
3/4 signals
3/4 signals
Parameters
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Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Source-reported access: API access · Confident confidence
Gaps we are still tracking