Gemini 3.1 Pro vs Molmo2-8B
Wins 6 of 6 areas
Coding · Reasoning · Facts · Images and charts · Long documents · Following instructions
Wins 0 of 6 areas
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Gemini 3.1 Pro is the stronger all-rounder.
Scores updated · 14 tests both models report · How we compare
Where each one wins
Tests won in each of the six 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 thinking30Gemini 3.1 Pro3 of 3 tests
- CodingWriting and fixing software20Gemini 3.1 Pro2 of 2 tests
- FactsGetting facts right instead of making them up20Gemini 3.1 Pro2 of 2 tests
- Images and chartsUnderstanding pictures, charts and video20Gemini 3.1 Pro2 of 2 tests
- Long documentsFinding answers in very long texts10Gemini 3.1 Pro1 of 1 test
- Following instructionsDoing exactly what it is asked10Gemini 3.1 Pro1 of 1 test
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 Gemini 3.1 Pro pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+51.6points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+50.2points ahead
- Code for real scientific research problemsSciCode+45.4points ahead
Where Molmo2-8B pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 14 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 3.1 Pro
- Terminal-Bench HardGemini 3.1 Pro by 53.853.80+53.8
- SciCodeGemini 3.1 Pro by 45.458.713.3+45.4
ReasoningGemini 3.1 Pro
- GPQA DiamondGemini 3.1 Pro by 51.694.142.5+51.6
- Humanity's Last ExamGemini 3.1 Pro by 42.7474.3+42.7
- CritPtGemini 3.1 Pro by 17.717.70+17.7
FactsGemini 3.1 Pro
- AA-Omniscience · AccuracyGemini 3.1 Pro by 43.454.911.4+43.4
- AA-Omniscience · Non-hallucinationGemini 3.1 Pro by 40.249.18.9+40.2
Images and chartsGemini 3.1 Pro
- MMMU-ProGemini 3.1 Pro by 44.982.437.5+44.9
- OCRBenchv2Gemini 3.1 Pro by 18.162.844.7+18.1
Following instructionsGemini 3.1 Pro
- IFBenchGemini 3.1 Pro by 50.277.126.9+50.2
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.
- AA-OmniscienceGemini 3.1 Pro by 101.131.9-69.2+101.1
- τ²-Bench Telecom (AA run)Gemini 3.1 Pro by 95.695.60+95.6
- AA IntelligenceGemini 3.1 Pro by 24.729.75+24.7
Questions people ask
Which is better, Gemini 3.1 Pro or Molmo2-8B?
Gemini 3.1 Pro wins all six areas where both have results: coding, reasoning, facts, images and charts, long documents and following instructions. Molmo2-8B wins none.
Which is better for coding?
Gemini 3.1 Pro. It wins 2 of the 2 coding tests both models report; Molmo2-8B wins none.
How do you compare the two?
We use the 14 benchmark tests both models have published scores on. The verdict counts the 11 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.