Claude Opus 4.8 vs Qwen3.7 Plus Preview
Wins 6 of 8 areas
Coding · Agents · Reasoning · Images and charts · Math · Long documents
Wins 1 of 8 areas
Following instructions
Claude Opus 4.8 is the stronger all-rounder.Qwen3.7 Plus Preview is cheaper and better at following instructions.
Scores updated · 39 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 software60Claude Opus 4.86 of 6 tests
- AgentsCarrying out multi-step tasks on its own60Claude Opus 4.86 of 6 tests
- ReasoningHard problems that need careful thinking30Claude Opus 4.83 of 3 tests
- Images and chartsUnderstanding pictures, charts and video20Claude Opus 4.82 of 2 tests
- MathCompetition and research-level math21Claude Opus 4.82 of 3 tests
- Long documentsFinding answers in very long texts10Claude Opus 4.81 of 1 test
- Following instructionsDoing exactly what it is asked01Qwen3.7 Plus Preview1 of 1 test
- FactsGetting facts right instead of making them up11Even1 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.
Qwen3.7 Plus Preview costs 93% 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 4.8 pulls ahead
- Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+45.6points ahead
- Real work tasks from 44 professionsGDPVal+34.3points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+26.3points ahead
Where Qwen3.7 Plus Preview pulls ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+15.8points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+11.6points ahead
- Olympiad math problems with short answersIMOAnswerBench+2.5points ahead
Every test, side by side
All 39 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Opus 4.8
- Terminal-Bench 2.1Claude Opus 4.8 by 23.684.661+23.6
- SWE-bench ProClaude Opus 4.8 by 11.669.257.6+11.6
- Terminal-Bench HardClaude Opus 4.8 by 11.358.347+11.3
- SWE-bench VerifiedClaude Opus 4.8 by 10.988.677.7+10.9
- SWE-bench MultilingualClaude Opus 4.8 by 8.684.475.8+8.6
- SciCodeClaude Opus 4.8 by 8.354.446.1+8.3
AgentsClaude Opus 4.8
- GDPValClaude Opus 4.8 by 34.347.713.4+34.3
- Terminal-Bench 4.0Claude Opus 4.8 by 20.721.71+20.7
- AA ApexAgentsClaude Opus 4.8 by 1739.422.4+17
- τ-Bench V3 · BankingClaude Opus 4.8 by 16.734.217.5+16.7
- OSWorld-VerifiedClaude Opus 4.8 by 10.183.473.3+10.1
- MCP AtlasClaude Opus 4.8 by 982.273.2+9
ReasoningClaude Opus 4.8
- Humanity's Last ExamClaude Opus 4.8 by 13.148.735.6+13.1
- CritPtClaude Opus 4.8 by 11.820.99.1+11.8
- GPQA DiamondClaude Opus 4.8 by 29290+2
FactsEven
- AA-Omniscience · AccuracyClaude Opus 4.8 by 26.348.822.5+26.3
- AA-Omniscience · Non-hallucinationQwen3.7 Plus Preview by 11.660.772.3+11.6
Images and chartsClaude Opus 4.8
- CharXiv (RQ)Claude Opus 4.8 by 489.985.9+4
- LMArena · VisionClaude Opus 4.8 by 18 rating points12951277+18 rating
MathClaude Opus 4.8
- FrontierMath Tiers 1-3 (v2)Claude Opus 4.8 by 45.68034.4+45.6
- HMMT Feb. 2026Claude Opus 4.8 by 2.695.592.9+2.6
- IMOAnswerBenchQwen3.7 Plus Preview by 2.583.586+2.5
Following instructionsQwen3.7 Plus Preview
- IFBenchQwen3.7 Plus Preview by 15.862.278+15.8
Other results15 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.
- GDP (Surge AI)Claude Opus 4.8 by 72.684.812.2+72.6
- DeepSWE 1.1Claude Opus 4.8 by 42.55916.5+42.5
- Toolathlon VerifiedClaude Opus 4.8 by 29.379.950.6+29.3
- NL2RepoClaude Opus 4.8 by 28.669.741.1+28.6
- AA-OmniscienceClaude Opus 4.8 by 27.728.81.1+27.7
- AA Agentic IndexClaude Opus 4.8 by 22.942.619.7+22.9
- JobBenchClaude Opus 4.8 by 20.848.427.6+20.8
- Artificial Analysis Coding IndexClaude Opus 4.8 by 18.474.355.9+18.4
- AA IntelligenceClaude Opus 4.8 by 16.641.825.2+16.6
- Finance Agent v2Claude Opus 4.8 by 15.753.938.2+15.7
- Agents' Last ExamClaude Opus 4.8 by 12.525.713.2+12.5
- ScreenSpot-Pro (No tools)Claude Opus 4.8 by 8.987.979+8.9
- IncludeClaude Opus 4.8 by 4.687.683+4.6
- Terminal-Bench 2.0Claude Opus 4.8 by 4.374.670.3+4.3
- τ²-Bench Telecom (AA run)Claude Opus 4.8 by 1.494.493+1.4
Questions people ask
Which is better, Claude Opus 4.8 or Qwen3.7 Plus Preview?
Claude Opus 4.8 wins six of the eight areas we test: coding, agents, reasoning, images and charts, math and long documents. Qwen3.7 Plus Preview wins following instructions, and costs 93% less. They are level on facts.
Which is better for coding?
Claude Opus 4.8. It wins 6 of the 6 coding tests both models report; Qwen3.7 Plus Preview wins none.
Which is cheaper?
Claude Opus 4.8 costs $5.00 per million input tokens and $25.00 per million output tokens; Qwen3.7 Plus Preview costs $0.40 and $1.60. That makes Qwen3.7 Plus Preview about 93% cheaper for the same work.
How do you compare the two?
We use the 39 benchmark tests both models have published scores on. The verdict counts the 24 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 15 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.