o1 vs Qwen3.5 397B A17B
Wins 1 of 8 areas
Facts
Wins 7 of 8 areas
Coding · Agents · Reasoning · Images and charts · Math · Long documents · Following instructions
Qwen3.5 397B A17B is the stronger all-rounder.o1 is better at facts.
Scores updated · 22 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 software03Qwen3.5 397B A17B3 of 3 tests
- ReasoningHard problems that need careful thinking03Qwen3.5 397B A17B3 of 3 tests
- Images and chartsUnderstanding pictures, charts and video02Qwen3.5 397B A17B2 of 2 tests
- AgentsCarrying out multi-step tasks on its own01Qwen3.5 397B A17B1 of 1 test
- MathCompetition and research-level math01Qwen3.5 397B A17B1 of 1 test
- Long documentsFinding answers in very long texts01Qwen3.5 397B A17B1 of 1 test
- Following instructionsDoing exactly what it is asked01Qwen3.5 397B A17B1 of 1 test
- FactsGetting facts right instead of making them up30o13 of 3 tests
Agents, math, 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 397B A17B costs 94% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Qwen3.5 397B A17B pulls ahead
- Fixes real GitHub issues in Python projectsSWE-bench Verified+35.1points ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+28points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+22points ahead
Where o1 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+19.3points ahead
- Short factual questions, answered correctlySimpleQA Verified+15.1points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+3.7points ahead
Every test, side by side
All 22 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingQwen3.5 397B A17B
- SWE-bench VerifiedQwen3.5 397B A17B by 35.141.376.4+35.1
- Terminal-Bench HardQwen3.5 397B A17B by 2812.940.9+28
- SciCodeQwen3.5 397B A17B by 935.844.8+9
ReasoningQwen3.5 397B A17B
- Humanity's Last ExamQwen3.5 397B A17B by 22729+22
- GPQA DiamondQwen3.5 397B A17B by 14.674.789.3+14.6
- CritPtQwen3.5 397B A17B by 1.40.31.7+1.4
Factso1
- AA-Omniscience · Non-hallucinationo1 by 19.330.411.1+19.3
- SimpleQA Verifiedo1 by 15.141.126+15.1
- AA-Omniscience · Accuracyo1 by 3.734.530.8+3.7
Images and chartsQwen3.5 397B A17B
- LMArena · VisionQwen3.5 397B A17B by 96 rating points11681264+96 rating
- MMMUQwen3.5 397B A17B by 7.477.685+7.4
MathQwen3.5 397B A17B
- FrontierMath Tiers 1-3 (v2)Qwen3.5 397B A17B by 16.514.731.2+16.5
Long documentsQwen3.5 397B A17B
- AA-LCRQwen3.5 397B A17B by 12.36577.3+12.3
Following instructionsQwen3.5 397B A17B
- IFBenchQwen3.5 397B A17B by 8.570.378.8+8.5
Other results7 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.
- τ²-Bench Telecom (AA run)Qwen3.5 397B A17B by 3362.695.6+33
- AA Agentic Indexo1 by 20.531.110.6+20.5
- AA-Omniscienceo1 by 19.7-11.1-30.8+19.7
- Artificial Analysis Coding IndexQwen3.5 397B A17B by 8.539.748.2+8.5
- AA IntelligenceQwen3.5 397B A17B by 3.215.218.4+3.2
- StrongREJECTQwen3.5 397B A17B by 2.49799.4+2.4
- MMMLUtie87.788.5tie
Questions people ask
Which is better, o1 or Qwen3.5 397B A17B?
Qwen3.5 397B A17B wins seven of the eight areas we test: coding, agents, reasoning, images and charts, math, long documents and following instructions. o1 wins facts.
Which is better for coding?
Qwen3.5 397B A17B. It wins 3 of the 3 coding tests both models report; o1 wins none.
Which is cheaper?
o1 costs $15.00 per million input tokens and $60.00 per million output tokens; Qwen3.5 397B A17B costs $0.60 and $3.60. That makes Qwen3.5 397B A17B about 94% cheaper for the same work.
How do you compare the two?
We use the 22 benchmark tests both models have published scores on. The verdict counts the 15 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 7 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.