GPT-5.6 Sol is the stronger all-rounder.
Scores updated · 6 tests both models report · How we compare
Where each one wins
Tests won in each of the one area 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.
Images and charts 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
- Harder college exam questions with imagesMMMU-Pro+1.8points ahead
Where Inkling 2 Small pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 6 tests both models report. The winning score is in its model's colour; marks a score checked independently.
Other results5 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.
- JobBenchInkling 2 Small by 25.145.470.5+25.1
- Terminal-Bench-Science 0.1GPT-5.6 Sol by 16.722.45.7+16.7
- GDPval-AA 2.1Inkling 2 Small by 42 rating points15881630+42 rating
- DeepSWE 1.1tie7372.1tie
- StrongREJECTtie98.597.8tie
Questions people ask
Which is better, GPT-5.6 Sol or Inkling 2 Small?
GPT-5.6 Sol wins the one area where both have results: images and charts. Inkling 2 Small wins none.
How do you compare the two?
We use the 6 benchmark tests both models have published scores on. The verdict counts the 1 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 5 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.