Model Release Radar
Price/capability frontier position, benchmark scores, and community signal
Model Release Radar
Claude Sonnet 5.5
anthropic·released Monday, Sep 28, 2026
Frontier position
- On frontier AA intelligence index - no tracked model currently beats it on both price and capability.
Cost vs. capability
This model has not been measured on DeepSWE (or any other benchmark with a real measured per-task cost) yet, so no cost/capability chart is drawn. Its Artificial Analysis benchmark scores are listed below.
Benchmark scores
Measured cost per task (DeepSWE)
This model has not been measured on DeepSWE (or any other benchmark with a real measured per-task cost) yet.
Artificial Analysis scores (no matched cost)
Artificial Analysis scores below have no measured per-task cost, so no frontier claim is made for them here.
| Benchmark | Score |
|---|---|
| AA intelligence index | 56.0 |
| Humanity's Last Exam | 55.0% |
| LCR | 82.7% |
| SciCode (coding) | 61.0% |
Variants
This page covers 5 reasoning-effort variants of the same model.
| Variant | AA coding index | AA intelligence index | Price /1M |
|---|---|---|---|
| Max effort (shown above) | - | 56.0 | $4.00/1M |
| Extra-high effort | - | 51.9 | $4.00/1M |
| High effort | - | 46.7 | $4.00/1M |
| Low effort | - | 35.8 | $4.00/1M |
| Medium effort | - | 40.7 | $4.00/1M |
Community signal
No LMArena community rating is tracked for this model yet.