Apertus 8B Instruct vs Kimi Linear 48B A3B Instruct
Wins 0 of 4 areas
—
Wins 3 of 4 areas
Coding · Long documents · Following instructions
Kimi Linear 48B A3B Instruct is the stronger all-rounder.
Scores updated · 8 tests both models report · How we compare
Where each one wins
Tests won in each of the four 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.
- CodingWriting and fixing software02Kimi Linear 48B A3B Instruct2 of 2 tests
- Long documentsFinding answers in very long texts01Kimi Linear 48B A3B Instruct1 of 1 test
- Following instructionsDoing exactly what it is asked01Kimi Linear 48B A3B Instruct1 of 1 test
- ReasoningHard problems that need careful thinking11Even1 each
Long documents and following instructions rest on a single test each.
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 Linear 48B A3B Instruct pulls ahead
- Code for real scientific research problemsSciCode+15.8points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+15.6points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+5.7points ahead
Where Apertus 8B Instruct pulls ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+2.5points ahead
Every test, side by side
All 8 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingKimi Linear 48B A3B Instruct
- SciCodeKimi Linear 48B A3B Instruct by 15.84.119.9+15.8
- Terminal-Bench HardKimi Linear 48B A3B Instruct by 11.4011.4+11.4
ReasoningEven
- GPQA DiamondKimi Linear 48B A3B Instruct by 15.625.641.2+15.6
- Humanity's Last ExamApertus 8B Instruct by 2.552.5+2.5
Long documentsKimi Linear 48B A3B Instruct
- AA-LCRKimi Linear 48B A3B Instruct by 28028+28
Following instructionsKimi Linear 48B A3B Instruct
- IFBenchKimi Linear 48B A3B Instruct by 5.722.428.1+5.7
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.
- τ²-Bench Telecom (AA run)Apertus 8B Instruct by 11.411.40+11.4
- AA IntelligenceKimi Linear 48B A3B Instruct by 2.54.87.3+2.5
Questions people ask
Which is better, Apertus 8B Instruct or Kimi Linear 48B A3B Instruct?
Kimi Linear 48B A3B Instruct wins three of the four areas where both have results: coding, long documents and following instructions. Apertus 8B Instruct wins none. They are level on reasoning.
Which is better for coding?
Kimi Linear 48B A3B Instruct. It wins 2 of the 2 coding tests both models report; Apertus 8B Instruct wins none.
How do you compare the two?
We use the 8 benchmark tests both models have published scores on. The verdict counts the 6 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.