Apertus 70B Instruct vs Tri-21B-Think
Wins 1 of 5 areas
Facts
Wins 3 of 5 areas
Reasoning · Long documents · Following instructions
Tri-21B-Think is the stronger all-rounder.Apertus 70B Instruct is better at facts.
Scores updated · 11 tests both models report · How we compare
Where each one wins
Tests won in each of the five 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.
- ReasoningHard problems that need careful thinking01Tri-21B-Think1 of 3 tests · 2 ties
- Long documentsFinding answers in very long texts01Tri-21B-Think1 of 1 test
- Following instructionsDoing exactly what it is asked01Tri-21B-Think1 of 1 test
- FactsGetting facts right instead of making them up10Apertus 70B Instruct1 of 2 tests · 1 tie
- CodingWriting and fixing software00Even0 each · 1 tie
Coding, 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 Tri-21B-Think pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+32.9points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+28.7points ahead
Where Apertus 70B Instruct pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+2.6points ahead
Every test, side by side
All 11 tests both models report. The winning score is in its model's colour; marks a score checked independently.
ReasoningTri-21B-Think
- GPQA DiamondTri-21B-Think by 32.927.260.1+32.9
- Humanity's Last Examtie5.55.9tie
- CritPttie00.3tie
FactsApertus 70B Instruct
- AA-Omniscience · Non-hallucinationApertus 70B Instruct by 2.617.214.6+2.6
- AA-Omniscience · Accuracytie11.612.3tie
Following instructionsTri-21B-Think
- IFBenchTri-21B-Think by 28.725.954.6+28.7
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.
- τ²-Bench Telecom (AA run)Tri-21B-Think by 68.112.981+68.1
- AA IntelligenceTri-21B-Think by 3.95.19+3.9
- AA-OmniscienceApertus 70B Instruct by 1-61.5-62.5+1
Questions people ask
Which is better, Apertus 70B Instruct or Tri-21B-Think?
Tri-21B-Think wins three of the five areas where both have results: reasoning, long documents and following instructions. Apertus 70B Instruct wins facts. They are level on coding.
Which is better for coding?
Neither. All 1 coding tests both models report are ties.
How do you compare the two?
We use the 11 benchmark tests both models have published scores on. The verdict counts the 8 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.