Kimi K2.5 is the stronger all-rounder.
Scores updated · 5 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.
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 Kimi K2.5 pulls ahead
- Harvard-MIT high-school math contest problemsHMMT Feb. 2026+22.7points ahead
- US invitational high-school math exam problemsAIME 2026+13.3points ahead
Where QED-Nano pulls ahead
No clear win on a test scored out of 100.
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.
MathKimi K2.5
- HMMT Feb. 2026Kimi K2.5 by 22.787.164.4+22.7
- AIME 2026Kimi K2.5 by 13.395.882.5+13.3
Other results3 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.
- HMMT Feb. 2025Kimi K2.5 by 18.795.476.7+18.7
- AIME 2025Kimi K2.5 by 18.696.177.5+18.6
- HMMT Nov. 2025Kimi K2.5 by 14.289.275+14.2
Questions people ask
Which is better, Kimi K2.5 or QED-Nano?
Kimi K2.5 wins the one area where both have results: math. QED-Nano wins none.
How do you compare the two?
We use the 5 benchmark tests both models have published scores on. The verdict counts the 2 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 3 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.