Gemini 3.1 Pro vs Muse Glimmer
Wins 5 of 8 areas
Coding · Reasoning · Facts · Images and charts · Math
Wins 1 of 8 areas
Long documents
Gemini 3.1 Pro is the stronger all-rounder.Muse Glimmer is cheaper and better at long documents.
Scores updated · 27 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. 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 software50Gemini 3.1 Pro5 of 5 tests
- ReasoningHard problems that need careful thinking30Gemini 3.1 Pro3 of 3 tests
- Images and chartsUnderstanding pictures, charts and video30Gemini 3.1 Pro3 of 3 tests
- FactsGetting facts right instead of making them up20Gemini 3.1 Pro2 of 2 tests
- MathCompetition and research-level math10Gemini 3.1 Pro1 of 1 test
- Long documentsFinding answers in very long texts01Muse Glimmer1 of 1 test
- AgentsCarrying out multi-step tasks on its own22Even2 each · 1 tie
- Following instructionsDoing exactly what it is asked00Even0 each · 1 tie
Math, 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.
Muse Glimmer costs 88% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Gemini 3.1 Pro pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+31points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+27.9points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+25points ahead
Where Muse Glimmer pulls ahead
- Multi-step tasks using many real software toolsMCP Atlas+6.3points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+2.1points ahead
- Reasons across sets of long documentsAA-LCR+1.3points ahead
Every test, side by side
All 27 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 3.1 Pro
- Terminal-Bench 2.1Gemini 3.1 Pro by 22.173.851.7+22.1
- SciCodeGemini 3.1 Pro by 13.858.744.9+13.8
- LMArena · WebDevGemini 3.1 Pro by 86 rating points14461360+86 rating
- SWE-bench VerifiedGemini 3.1 Pro by 4.680.676+4.6
- SWE-bench ProGemini 3.1 Pro by 354.251.2+3
AgentsEven
- OSWorld-VerifiedGemini 3.1 Pro by 10.376.265.9+10.3
- MCP AtlasMuse Glimmer by 6.369.275.5+6.3
- Terminal-Bench 4.0Gemini 3.1 Pro by 3.540.5+3.5
- τ-Bench V3 · BankingMuse Glimmer by 2.121.423.5+2.1
- GDPValtie14.714.5tie
ReasoningGemini 3.1 Pro
- Humanity's Last ExamGemini 3.1 Pro by 254722+25
- CritPtGemini 3.1 Pro by 15.117.72.6+15.1
- GPQA DiamondGemini 3.1 Pro by 10.694.183.5+10.6
FactsGemini 3.1 Pro
- AA-Omniscience · Non-hallucinationGemini 3.1 Pro by 3149.118.1+31
- AA-Omniscience · AccuracyGemini 3.1 Pro by 27.954.927+27.9
Images and chartsGemini 3.1 Pro
- MMMU-ProGemini 3.1 Pro by 8.182.474.3+8.1
- OCRBenchv2Gemini 3.1 Pro by 5.962.856.9+5.9
- CharXiv (RQ)Gemini 3.1 Pro by 4.583.378.8+4.5
Other results6 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 64.731.9-32.9+64.7
- Artificial Analysis Coding IndexGemini 3.1 Pro by 19.868.849+19.8
- AA IntelligenceGemini 3.1 Pro by 12.229.717.5+12.2
- DeepSearchQA (F1)Gemini 3.1 Pro by 7.381.974.6+7.3
- τ³-Bench BankingMuse Glimmer by 716.523.5+7
- AA Agentic Indextie10.310.5tie
Questions people ask
Which is better, Gemini 3.1 Pro or Muse Glimmer?
Gemini 3.1 Pro wins five of the eight areas we test: coding, reasoning, facts, images and charts and math. Muse Glimmer wins long documents, and costs 88% less. They are level on agents and following instructions.
Which is better for coding?
Gemini 3.1 Pro. It wins 5 of the 5 coding tests both models report; Muse Glimmer wins none.
Which is cheaper?
Gemini 3.1 Pro costs $2.00 per million input tokens and $12.00 per million output tokens; Muse Glimmer costs $0.33 and $1.35. That makes Muse Glimmer about 88% cheaper for the same work.
How do you compare the two?
We use the 27 benchmark tests both models have published scores on. The verdict counts the 21 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 6 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.