The two are evenly matched.Atria Dawn is better at agents; GPT-5.6 Sol at coding.
Scores updated · 5 tests both models report · How we compare
Where each one wins
Tests won in each of the two areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Agents rests on a single test.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where GPT-5.6 Sol pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+9.7points ahead
- Long, multi-file coding tasks in real codebasesSWE-bench Pro+5points ahead
Where Atria Dawn pulls ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+2.1points ahead
Every test, side by side
All 5 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5.6 Sol
- Terminal-Bench 2.1GPT-5.6 Sol by 9.778.388+9.7
- SWE-bench ProGPT-5.6 Sol by 559.664.6+5
Other results2 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- τ³-Bench BankingAtria Dawn by 8.241.233+8.2
- CyberGymAtria Dawn by 286.584.5+2
Questions people ask
Which is better, Atria Dawn or GPT-5.6 Sol?
Atria Dawn and GPT-5.6 Sol each win one of the two areas where both have results. Atria Dawn wins agents; GPT-5.6 Sol wins coding.
Which is better for coding?
GPT-5.6 Sol. It wins 2 of the 2 coding tests both models report; Atria Dawn wins none.
How do you compare the two?
We use the 5 benchmark tests both models have published scores on. The verdict counts the 3 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 2 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.