Claude Opus 4.5 vs GLM-4.7-Flash
Wins 4 of 6 areas
Coding · Reasoning · Facts · Long documents
Wins 1 of 6 areas
Following instructions
Claude Opus 4.5 is the stronger all-rounder.GLM-4.7-Flash is cheaper and better at following instructions.
Scores updated · 24 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.
- CodingWriting and fixing software40Claude Opus 4.54 of 4 tests
- ReasoningHard problems that need careful thinking30Claude Opus 4.53 of 3 tests
- FactsGetting facts right instead of making them up21Claude Opus 4.52 of 3 tests
- Long documentsFinding answers in very long texts10Claude Opus 4.51 of 1 test
- Following instructionsDoing exactly what it is asked01GLM-4.7-Flash1 of 1 test
- AgentsCarrying out multi-step tasks on its own11Even1 each
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-4.7-Flash costs 98% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Opus 4.5 pulls ahead
- Reasons across sets of long documentsAA-LCR+35.6points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+32.9points ahead
- Real work tasks from 44 professionsGDPVal+30.4points ahead
Where GLM-4.7-Flash pulls ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+5.8points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+2.8points ahead
Every test, side by side
All 24 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Opus 4.5
- Terminal-Bench HardClaude Opus 4.5 by 254722+25
- SWE-bench VerifiedClaude Opus 4.5 by 21.780.959.2+21.7
- LiveCodeBench v6Claude Opus 4.5 by 20.884.864+20.8
- SciCodeClaude Opus 4.5 by 15.849.533.7+15.8
AgentsEven
- GDPValClaude Opus 4.5 by 30.447.316.9+30.4
- BrowseCompGLM-4.7-Flash by 5.83742.8+5.8
ReasoningClaude Opus 4.5
- GPQA DiamondClaude Opus 4.5 by 28.586.658.1+28.5
- Humanity's Last ExamClaude Opus 4.5 by 22.530.17.6+22.5
- CritPtClaude Opus 4.5 by 4.34.60.3+4.3
FactsClaude Opus 4.5
- AA-Omniscience · Non-hallucinationClaude Opus 4.5 by 32.9396.1+32.9
- AA-Omniscience · AccuracyClaude Opus 4.5 by 30.446.616.1+30.4
- Vectara HHEM hallucination ratelower is betterGLM-4.7-Flash by 1.610.99.3+1.6
Following instructionsGLM-4.7-Flash
- IFBenchGLM-4.7-Flash by 2.85860.8+2.8
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.
- AA-OmniscienceClaude Opus 4.5 by 76.614-62.6+76.6
- Artificial Analysis Coding IndexClaude Opus 4.5 by 21.947.825.9+21.9
- τ²-BenchClaude Opus 4.5 by 18.798.279.5+18.7
- AA IntelligenceClaude Opus 4.5 by 14.229.114.9+14.2
- AA Agentic IndexClaude Opus 4.5 by 13.659.646+13.6
- τ²-Bench Telecom (AA run)GLM-4.7-Flash by 9.389.598.8+9.3
- vectara_answer_rateClaude Opus 4.5 by 7.198.791.6+7.1
- vectara_avg_summary_lengthClaude Opus 4.5 by 42.7 rating points114.571.8+42.7 rating
- vectara_factual_consistencyGLM-4.7-Flash by 1.689.190.7+1.6
- AIME 2025Claude Opus 4.5 by 1.292.891.6+1.2
Questions people ask
Which is better, Claude Opus 4.5 or GLM-4.7-Flash?
Claude Opus 4.5 wins four of the six areas where both have results: coding, reasoning, facts and long documents. GLM-4.7-Flash wins following instructions, and costs 98% less. They are level on agents.
Which is better for coding?
Claude Opus 4.5. It wins 4 of the 4 coding tests both models report; GLM-4.7-Flash wins none.
Which is cheaper?
Claude Opus 4.5 costs $5.00 per million input tokens and $25.00 per million output tokens; GLM-4.7-Flash costs $0.07 and $0.40. That makes GLM-4.7-Flash about 98% cheaper for the same work.
How do you compare the two?
We use the 24 benchmark tests both models have published scores on. The verdict counts the 14 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.