Claude Opus 4.6 vs Muse Glimmer
Wins 5 of 8 areas
Coding · Agents · Reasoning · Facts · Math
Wins 3 of 8 areas
Images and charts · Long documents · Following instructions
Claude Opus 4.6 is the stronger all-rounder.Muse Glimmer is cheaper and better at images and charts.
Scores updated · 25 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 software40Claude Opus 4.64 of 4 tests
- ReasoningHard problems that need careful thinking30Claude Opus 4.63 of 3 tests
- FactsGetting facts right instead of making them up20Claude Opus 4.62 of 2 tests
- AgentsCarrying out multi-step tasks on its own21Claude Opus 4.62 of 3 tests
- MathCompetition and research-level math10Claude Opus 4.61 of 1 test
- Images and chartsUnderstanding pictures, charts and video12Muse Glimmer2 of 3 tests
- Long documentsFinding answers in very long texts01Muse Glimmer1 of 1 test
- Following instructionsDoing exactly what it is asked01Muse Glimmer1 of 1 test
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 94% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Claude Opus 4.6 pulls ahead
- Real work tasks from 44 professionsGDPVal+41.4points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+20points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+19.1points ahead
Where Muse Glimmer pulls ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+23.9points ahead
- Multi-step tasks using many real software toolsMCP Atlas+12.8points ahead
- Reads and reasons about text in imagesOCRBenchv2+8.5points ahead
Every test, side by side
All 25 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Opus 4.6
- LMArena · WebDevClaude Opus 4.6 by 186 rating points15461360+186 rating
- SciCodeClaude Opus 4.6 by 751.944.9+7
- SWE-bench VerifiedClaude Opus 4.6 by 4.880.876+4.8
- SWE-bench ProClaude Opus 4.6 by 2.253.451.2+2.2
AgentsClaude Opus 4.6
- GDPValClaude Opus 4.6 by 41.455.914.5+41.4
- MCP AtlasMuse Glimmer by 12.862.775.5+12.8
- OSWorld-VerifiedClaude Opus 4.6 by 6.872.765.9+6.8
ReasoningClaude Opus 4.6
- Humanity's Last ExamClaude Opus 4.6 by 17.939.922+17.9
- CritPtClaude Opus 4.6 by 1012.62.6+10
- GPQA DiamondClaude Opus 4.6 by 6.189.683.5+6.1
FactsClaude Opus 4.6
- AA-Omniscience · AccuracyClaude Opus 4.6 by 204727+20
- AA-Omniscience · Non-hallucinationClaude Opus 4.6 by 19.137.218.1+19.1
Images and chartsMuse Glimmer
- OCRBenchv2Muse Glimmer by 8.548.456.9+8.5
- CharXiv (RQ)Muse Glimmer by 1.477.478.8+1.4
- MMMU-ProClaude Opus 4.6 by 1.175.474.3+1.1
Following instructionsMuse Glimmer
- IFBenchMuse Glimmer by 23.953.177+23.9
Other results7 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 Agentic IndexClaude Opus 4.6 by 57.167.610.5+57.1
- AA-OmniscienceClaude Opus 4.6 by 46.513.7-32.9+46.5
- ScreenSpot-Pro (No tools)Muse Glimmer by 17.757.775.4+17.7
- DeepSearchQA (F1)Claude Opus 4.6 by 16.791.374.6+16.7
- AA IntelligenceClaude Opus 4.6 by 14.431.917.5+14.4
- OCRBench v2 (Chinese)Claude Opus 4.6 by 359.856.8+3
- Artificial Analysis Coding Indextie48.149tie
Questions people ask
Which is better, Claude Opus 4.6 or Muse Glimmer?
Claude Opus 4.6 wins five of the eight areas we test: coding, agents, reasoning, facts and math. Muse Glimmer wins images and charts, long documents and following instructions, and costs 94% less.
Which is better for coding?
Claude Opus 4.6. It wins 4 of the 4 coding tests both models report; Muse Glimmer wins none.
Which is cheaper?
Claude Opus 4.6 costs $5.00 per million input tokens and $25.00 per million output tokens; Muse Glimmer costs $0.33 and $1.35. That makes Muse Glimmer about 94% cheaper for the same work.
How do you compare the two?
We use the 25 benchmark tests both models have published scores on. The verdict counts the 18 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 7 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.