Claude Opus 4.7 vs GPT-5.1
Wins 5 of 7 areas
Coding · Agents · Reasoning · Facts · Images and charts
Wins 2 of 7 areas
Long documents · Following instructions
Claude Opus 4.7 is the stronger all-rounder.GPT-5.1 is cheaper and better at long documents.
Scores updated · 34 tests both models report · How we compare
Where each one wins
Tests won in each of the seven 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 software50Claude Opus 4.75 of 5 tests
- ReasoningHard problems that need careful thinking50Claude Opus 4.75 of 5 tests
- FactsGetting facts right instead of making them up30Claude Opus 4.73 of 4 tests · 1 tie
- AgentsCarrying out multi-step tasks on its own30Claude Opus 4.73 of 3 tests
- Images and chartsUnderstanding pictures, charts and video20Claude Opus 4.72 of 2 tests
- Long documentsFinding answers in very long texts01GPT-5.11 of 1 test
- Following instructionsDoing exactly what it is asked01GPT-5.11 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.
GPT-5.1 costs 63% 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 4.7 pulls ahead
- Abstract visual puzzles that people can solveARC-AGI-2+58.2points ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+30.7points ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+28.5points ahead
Every test, side by side
All 34 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Opus 4.7
- Terminal-Bench 2.1Claude Opus 4.7 by 30.783.152.4+30.7
- LMArena · WebDevClaude Opus 4.7 by 163 rating points15581395+163 rating
- SWE-bench VerifiedClaude Opus 4.7 by 11.387.676.3+11.3
- SciCodeClaude Opus 4.7 by 11.254.543.3+11.2
- Terminal-Bench HardClaude Opus 4.7 by 651.545.5+6
AgentsClaude Opus 4.7
- BrowseCompClaude Opus 4.7 by 28.579.350.8+28.5
- GDPValClaude Opus 4.7 by 26.342.816.5+26.3
- τ-Bench V3 · BankingClaude Opus 4.7 by 18.734.615.9+18.7
ReasoningClaude Opus 4.7
- ARC-AGI-2Claude Opus 4.7 by 58.275.817.6+58.2
- Humanity's Last ExamClaude Opus 4.7 by 13.842.328.5+13.8
- SimpleBenchClaude Opus 4.7 by 8.561.753.2+8.5
- CritPtClaude Opus 4.7 by 7.1124.9+7.1
- GPQA DiamondClaude Opus 4.7 by 4.191.487.3+4.1
FactsClaude Opus 4.7
- AA-Omniscience · AccuracyClaude Opus 4.7 by 11.248.937.7+11.2
- AA-Omniscience · Non-hallucinationClaude Opus 4.7 by 9.657.748.1+9.6
- SimpleQA VerifiedClaude Opus 4.7 by 3.751.748+3.7
- Vectara HHEM hallucination ratelower is bettertie1212.1tie
Images and chartsClaude Opus 4.7
- LMArena · VisionClaude Opus 4.7 by 63 rating points13131250+63 rating
- MMMU-ProClaude Opus 4.7 by 3.378.875.5+3.3
Other results13 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.
- Artificial Analysis Coding IndexClaude Opus 4.7 by 24.273.649.4+24.2
- AA-OmniscienceClaude Opus 4.7 by 21.927.35.4+21.9
- Terminal-Bench 2.0Claude Opus 4.7 by 21.869.447.6+21.8
- ARC-AGI-1Claude Opus 4.7 by 19.29272.8+19.2
- AA Agentic IndexClaude Opus 4.7 by 17.939.521.6+17.9
- AA IntelligenceClaude Opus 4.7 by 1640.724.7+16
- HLE (with tools)Claude Opus 4.7 by 1254.742.7+12
- vectara_avg_summary_lengthGPT-5.1 by 105.3 rating points149.1254.4+105.3 rating
- frontiermath_tier_4_v1Claude Opus 4.7 by 10.422.912.5+10.4
- τ²-Bench Telecom (AA run)Claude Opus 4.7 by 6.788.681.9+6.7
- vectara_answer_rateGPT-5.1 by 298100+2
- MMMLUtie91.591tie
- vectara_factual_consistencytie8887.9tie
Questions people ask
Which is better, Claude Opus 4.7 or GPT-5.1?
Claude Opus 4.7 wins five of the seven areas where both have results: coding, agents, reasoning, facts and images and charts. GPT-5.1 wins long documents and following instructions, and costs 63% less.
Which is better for coding?
Claude Opus 4.7. It wins 5 of the 5 coding tests both models report; GPT-5.1 wins none.
Which is cheaper?
Claude Opus 4.7 costs $5.00 per million input tokens and $25.00 per million output tokens; GPT-5.1 costs $1.25 and $10.00. That makes GPT-5.1 about 63% cheaper for the same work.
How do you compare the two?
We use the 34 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 13 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.