Claude Opus 5 vs Qwen3.5 35B A3B
Wins 6 of 6 areas
Coding · Agents · Reasoning · Facts · Images and charts · Long documents
Wins 0 of 6 areas
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Claude Opus 5 is the stronger all-rounder.Qwen3.5 35B A3B is cheaper.
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 software60Claude Opus 56 of 6 tests
- AgentsCarrying out multi-step tasks on its own50Claude Opus 55 of 5 tests
- ReasoningHard problems that need careful thinking30Claude Opus 53 of 3 tests
- FactsGetting facts right instead of making them up20Claude Opus 52 of 2 tests
- Images and chartsUnderstanding pictures, charts and video20Claude Opus 52 of 2 tests
- Long documentsFinding answers in very long texts10Claude Opus 51 of 1 test
Long documents rests on a single test.
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.
Qwen3.5 35B A3B costs 93% 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 5 pulls ahead
- Real work tasks from 44 professionsGDPVal+55.6points ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+48.3points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+40.8points ahead
Where Qwen3.5 35B A3B pulls ahead
No clear win on a test scored out of 100.
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 5
- Terminal-Bench 2.1Claude Opus 5 by 48.389.140.8+48.3
- LMArena · WebDevClaude Opus 5 by 442 rating points16921250+442 rating
- SWE-bench ProClaude Opus 5 by 34.679.244.6+34.6
- SWE-bench MultilingualClaude Opus 5 by 29.289.560.3+29.2
- SWE-bench VerifiedClaude Opus 5 by 26.89669.2+26.8
- SciCodeClaude Opus 5 by 18.756.437.7+18.7
AgentsClaude Opus 5
- GDPValClaude Opus 5 by 55.661.25.6+55.6
- τ-Bench V3 · BankingClaude Opus 5 by 37.242.14.9+37.2
- BrowseCompClaude Opus 5 by 29.890.861+29.8
- OSWorld-VerifiedClaude Opus 5 by 28.983.454.5+28.9
- MCP AtlasClaude Opus 5 by 23.485.862.4+23.4
ReasoningClaude Opus 5
- Humanity's Last ExamClaude Opus 5 by 33.954.921+33.9
- CritPtClaude Opus 5 by 28.229.10.9+28.2
- GPQA DiamondClaude Opus 5 by 8.793.284.5+8.7
FactsClaude Opus 5
- AA-Omniscience · AccuracyClaude Opus 5 by 40.860.920.1+40.8
- AA-Omniscience · Non-hallucinationClaude Opus 5 by 24.639.214.6+24.6
Images and chartsClaude Opus 5
- MMMU-ProClaude Opus 5 by 1284.772.7+12
- CharXiv (RQ)Claude Opus 5 by 6.283.777.5+6.2
Other results5 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 5 by 85.237.1-48.1+85.2
- AA Agentic IndexClaude Opus 5 by 44.456.211.8+44.4
- Artificial Analysis Coding IndexClaude Opus 5 by 417837+41
- AA IntelligenceClaude Opus 5 by 31.550.819.3+31.5
- LVBenchClaude Opus 5 by 475.471.4+4
Questions people ask
Which is better, Claude Opus 5 or Qwen3.5 35B A3B?
Claude Opus 5 wins all six areas where both have results: coding, agents, reasoning, facts, images and charts and long documents. Qwen3.5 35B A3B wins none, but costs 93% less.
Which is better for coding?
Claude Opus 5. It wins 6 of the 6 coding tests both models report; Qwen3.5 35B A3B wins none.
Which is cheaper?
Claude Opus 5 costs $5.00 per million input tokens and $25.00 per million output tokens; Qwen3.5 35B A3B costs $0.25 and $2.00. That makes Qwen3.5 35B A3B about 93% 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 19 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 5 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.