Claude Opus 4.7 vs GLM-5.3-Flash
Wins 5 of 8 areas
Reasoning · Facts · Images and charts · Math · Following instructions
Wins 3 of 8 areas
Coding · Agents · Long documents
Claude Opus 4.7 is the stronger all-rounder.GLM-5.3-Flash is cheaper and better at coding.
Scores updated · 35 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.
- MathCompetition and research-level math30Claude Opus 4.73 of 3 tests
- ReasoningHard problems that need careful thinking31Claude Opus 4.73 of 5 tests · 1 tie
- Images and chartsUnderstanding pictures, charts and video20Claude Opus 4.72 of 2 tests
- FactsGetting facts right instead of making them up21Claude Opus 4.72 of 3 tests
- Following instructionsDoing exactly what it is asked10Claude Opus 4.71 of 1 test
- CodingWriting and fixing software23GLM-5.3-Flash3 of 5 tests
- AgentsCarrying out multi-step tasks on its own23GLM-5.3-Flash3 of 5 tests
- Long documentsFinding answers in very long texts01GLM-5.3-Flash1 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.
GLM-5.3-Flash costs 98% 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 4.7 pulls ahead
- Completes tasks by operating a computer desktopOSWorld-Verified+63.2points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+21.4points ahead
- Short factual questions, answered correctlySimpleQA Verified+19.7points ahead
Where GLM-5.3-Flash pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+14.7points ahead
- Real work tasks from 44 professionsGDPVal+14.6points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+12.6points ahead
Every test, side by side
All 35 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGLM-5.3-Flash
- LiveBench · Agentic CodingGLM-5.3-Flash by 6.150.756.8+6.1
- LMArena · WebDevGLM-5.3-Flash by 52 rating points15571609+52 rating
- LiveBench · CodingClaude Opus 4.7 by 3.182.179+3.1
- SciCodeClaude Opus 4.7 by 2.954.551.6+2.9
- Terminal-Bench 2.1GLM-5.3-Flash by 1.283.184.3+1.2
AgentsGLM-5.3-Flash
- OSWorld-VerifiedClaude Opus 4.7 by 63.27814.8+63.2
- GDPValGLM-5.3-Flash by 14.642.657.2+14.6
- τ-Bench V3 · BankingGLM-5.3-Flash by 12.634.647.2+12.6
- AA IT-Bench SREGLM-5.3-Flash by 4.546.751.2+4.5
- BrowseCompClaude Opus 4.7 by 3.379.376+3.3
ReasoningClaude Opus 4.7
- ARC-AGI-2Claude Opus 4.7 by 1075.865.8+10
- LiveBench · ReasoningClaude Opus 4.7 by 9.687.277.6+9.6
- CritPtGLM-5.3-Flash by 3.41215.4+3.4
- Humanity's Last ExamClaude Opus 4.7 by 2.442.339.9+2.4
- GPQA Diamondtie91.491.2tie
FactsClaude Opus 4.7
- AA-Omniscience · AccuracyClaude Opus 4.7 by 21.448.927.5+21.4
- SimpleQA VerifiedClaude Opus 4.7 by 19.751.732+19.7
- AA-Omniscience · Non-hallucinationGLM-5.3-Flash by 14.757.772.4+14.7
Images and chartsClaude Opus 4.7
- LMArena · VisionClaude Opus 4.7 by 19 rating points13141295+19 rating
- CharXiv (RQ)Claude Opus 4.7 by 1.69189.4+1.6
MathClaude Opus 4.7
- FrontierMath Tier 4Claude Opus 4.7 by 14.631.717.1+14.6
- FrontierMath Tiers 1-3 (v2)Claude Opus 4.7 by 14.470.255.8+14.4
- LiveBench · MathematicsClaude Opus 4.7 by 11.792.881.2+11.7
Following instructionsClaude Opus 4.7
- LiveBench · Instruction FollowingClaude Opus 4.7 by 13.966.752.8+13.9
Other results10 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.
- BabyVisionGLM-5.3-Flash by 31.222.253.4+31.2
- AA-OmniscienceClaude Opus 4.7 by 19.827.37.5+19.8
- ToolathlonGLM-5.3-Flash by 19.159.378.4+19.1
- OfficeQA ProClaude Opus 4.7 by 18.280.662.4+18.2
- AA Agentic IndexGLM-5.3-Flash by 11.739.551.2+11.7
- Artificial Analysis Coding IndexClaude Opus 4.7 by 2.173.671.5+2.1
- livebench_data_analysisClaude Opus 4.7 by 1.978.376.4+1.9
- AA IntelligenceGLM-5.3-Flash by 1.140.741.8+1.1
- ARC-AGI-1Claude Opus 4.7 by 19291+1
- livebench_languagetie77.977.3tie
Questions people ask
Which is better, Claude Opus 4.7 or GLM-5.3-Flash?
Claude Opus 4.7 wins five of the eight areas we test: reasoning, facts, images and charts, math and following instructions. GLM-5.3-Flash wins coding, agents and long documents, and costs 98% less.
Which is better for coding?
GLM-5.3-Flash. It wins 3 of the 5 coding tests both models report; Claude Opus 4.7 wins 2.
Which is cheaper?
Claude Opus 4.7 costs $5.00 per million input tokens and $25.00 per million output tokens; GLM-5.3-Flash costs $0.15 and $0.50. That makes GLM-5.3-Flash about 98% cheaper for the same work.
How do you compare the two?
We use the 35 benchmark tests both models have published scores on. The verdict counts the 25 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 10 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.