Claude 3.7 Sonnet vs Qwen3.5 Omni Flash
Wins 5 of 7 areas
Coding · Agents · Reasoning · Facts · Following instructions
Wins 1 of 7 areas
Images and charts
Claude 3.7 Sonnet is the stronger all-rounder.Qwen3.5 Omni Flash is cheaper and better at images and charts.
Scores updated · 16 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.
- ReasoningHard problems that need careful thinking20Claude 3.7 Sonnet2 of 3 tests · 1 tie
- CodingWriting and fixing software20Claude 3.7 Sonnet2 of 2 tests
- FactsGetting facts right instead of making them up20Claude 3.7 Sonnet2 of 2 tests
- AgentsCarrying out multi-step tasks on its own10Claude 3.7 Sonnet1 of 1 test
- Following instructionsDoing exactly what it is asked10Claude 3.7 Sonnet1 of 1 test
- Images and chartsUnderstanding pictures, charts and video01Qwen3.5 Omni Flash1 of 1 test
- Long documentsFinding answers in very long texts00Even0 each · 1 tie
Agents, images and charts, 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.
Qwen3.5 Omni Flash costs 95% 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 3.7 Sonnet pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+53.4points ahead
- Code for real scientific research problemsSciCode+14.8points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+13.3points ahead
Where Qwen3.5 Omni Flash pulls ahead
- Harder college exam questions with imagesMMMU-Pro+4.6points ahead
Every test, side by side
All 16 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude 3.7 Sonnet
- SciCodeClaude 3.7 Sonnet by 14.840.325.5+14.8
- Terminal-Bench HardClaude 3.7 Sonnet by 12.921.28.3+12.9
ReasoningClaude 3.7 Sonnet
- GPQA DiamondClaude 3.7 Sonnet by 377.274.2+3
- Humanity's Last ExamClaude 3.7 Sonnet by 2.19.77.6+2.1
- CritPttie0.90tie
FactsClaude 3.7 Sonnet
- AA-Omniscience · Non-hallucinationClaude 3.7 Sonnet by 53.4606.6+53.4
- AA-Omniscience · AccuracyClaude 3.7 Sonnet by 13.32814.7+13.3
Images and chartsQwen3.5 Omni Flash
- MMMU-ProQwen3.5 Omni Flash by 4.660.164.7+4.6
Following instructionsClaude 3.7 Sonnet
- IFBenchClaude 3.7 Sonnet by 10.348.338+10.3
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 3.7 Sonnet by 64.4-0.7-65.1+64.4
- τ²-Bench Telecom (AA run)Qwen3.5 Omni Flash by 29.854.784.5+29.8
- Artificial Analysis Coding IndexClaude 3.7 Sonnet by 22.436.414+22.4
- AA IntelligenceClaude 3.7 Sonnet by 5.217.712.5+5.2
- AA Agentic IndexQwen3.5 Omni Flash by 4.63741.6+4.6
Questions people ask
Which is better, Claude 3.7 Sonnet or Qwen3.5 Omni Flash?
Claude 3.7 Sonnet wins five of the seven areas where both have results: coding, agents, reasoning, facts and following instructions. Qwen3.5 Omni Flash wins images and charts, and costs 95% less. They are level on long documents.
Which is better for coding?
Claude 3.7 Sonnet. It wins 2 of the 2 coding tests both models report; Qwen3.5 Omni Flash wins none.
Which is cheaper?
Claude 3.7 Sonnet costs $3.00 per million input tokens and $15.00 per million output tokens; Qwen3.5 Omni Flash costs $0.10 and $0.80. That makes Qwen3.5 Omni Flash about 95% cheaper for the same work.
How do you compare the two?
We use the 16 benchmark tests both models have published scores on. The verdict counts the 11 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.