GPT-5.6 Sol vs Qwen3.6 Plus
Wins 7 of 8 areas
Coding · Agents · Reasoning · Facts · Images and charts · Math · Long documents
Wins 0 of 8 areas
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GPT-5.6 Sol is the stronger all-rounder.Qwen3.6 Plus is cheaper.
Scores updated · 35 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 software70GPT-5.6 Sol7 of 7 tests
- AgentsCarrying out multi-step tasks on its own40GPT-5.6 Sol4 of 4 tests
- ReasoningHard problems that need careful thinking40GPT-5.6 Sol4 of 4 tests
- MathCompetition and research-level math30GPT-5.6 Sol3 of 3 tests
- Images and chartsUnderstanding pictures, charts and video20GPT-5.6 Sol2 of 2 tests
- FactsGetting facts right instead of making them up21GPT-5.6 Sol2 of 3 tests
- Long documentsFinding answers in very long texts10GPT-5.6 Sol1 of 1 test
- Following instructionsDoing exactly what it is asked11Even1 each
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.
Qwen3.6 Plus costs 85% 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 GPT-5.6 Sol pulls ahead
- Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+50.8points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+33points ahead
- Real work tasks from 44 professionsGDPVal+30.9points ahead
Where Qwen3.6 Plus pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+57.6points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+2.5points ahead
Every test, side by side
All 35 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5.6 Sol
- Terminal-Bench 2.1GPT-5.6 Sol by 26.68861.4+26.6
- Terminal-Bench HardGPT-5.6 Sol by 2265.943.9+22
- SciCodeGPT-5.6 Sol by 16.457.140.7+16.4
- LMArena · WebDevGPT-5.6 Sol by 157 rating points16181461+157 rating
- LiveBench · Agentic CodingGPT-5.6 Sol by 14.856.241.4+14.8
- SWE-bench ProGPT-5.6 Sol by 864.656.6+8
- LiveBench · CodingGPT-5.6 Sol by 5.783.978.2+5.7
AgentsGPT-5.6 Sol
- GDPValGPT-5.6 Sol by 30.955.624.7+30.9
- τ-Bench V3 · BankingGPT-5.6 Sol by 23.544.320.8+23.5
- OSWorld-VerifiedGPT-5.6 Sol by 20.58362.5+20.5
- MCP AtlasGPT-5.6 Sol by 9.583.674.1+9.5
ReasoningGPT-5.6 Sol
- CritPtGPT-5.6 Sol by 29.432.32.9+29.4
- Humanity's Last ExamGPT-5.6 Sol by 21.749.527.8+21.7
- LiveBench · ReasoningGPT-5.6 Sol by 15.991.775.8+15.9
- GPQA DiamondGPT-5.6 Sol by 5.994.188.2+5.9
FactsGPT-5.6 Sol
- AA-Omniscience · Non-hallucinationQwen3.6 Plus by 57.67.865.4+57.6
- AA-Omniscience · AccuracyGPT-5.6 Sol by 3359.426.4+33
- SimpleQA VerifiedGPT-5.6 Sol by 25.669.744.1+25.6
Images and chartsGPT-5.6 Sol
- MMMU-ProGPT-5.6 Sol by 5.483.478+5.4
- CharXiv (RQ)GPT-5.6 Sol by 4.385.881.5+4.3
MathGPT-5.6 Sol
- FrontierMath Tiers 1-3 (v2)GPT-5.6 Sol by 50.889.138.3+50.8
- LiveBench · MathematicsGPT-5.6 Sol by 12.596.283.7+12.5
- AIME 2026GPT-5.6 Sol by 4.699.995.3+4.6
Following instructionsEven
- LiveBench · Instruction FollowingGPT-5.6 Sol by 13.671.858.3+13.6
- IFBenchQwen3.6 Plus by 2.572.775.2+2.5
Other results9 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 IndexGPT-5.6 Sol by 22.977.454.5+22.9
- AA Agentic IndexGPT-5.6 Sol by 21.550.529+21.5
- AA-OmniscienceGPT-5.6 Sol by 21.1220.9+21.1
- AA IntelligenceGPT-5.6 Sol by 204727+20
- ToolathlonGPT-5.6 Sol by 18.25839.8+18.2
- HLE (with tools)GPT-5.6 Sol by 13.964.550.6+13.9
- livebench_languageGPT-5.6 Sol by 12.787.775+12.7
- τ²-Bench Telecom (AA run)Qwen3.6 Plus by 12.685.197.7+12.6
- livebench_data_analysisGPT-5.6 Sol by 9.979.869.9+9.9
Questions people ask
Which is better, GPT-5.6 Sol or Qwen3.6 Plus?
GPT-5.6 Sol wins seven of the eight areas we test: coding, agents, reasoning, facts, images and charts, math and long documents. Qwen3.6 Plus wins none, but costs 85% less. They are level on following instructions.
Which is better for coding?
GPT-5.6 Sol. It wins 7 of the 7 coding tests both models report; Qwen3.6 Plus wins none.
Which is cheaper?
GPT-5.6 Sol costs $4.00 per million input tokens and $20.00 per million output tokens; Qwen3.6 Plus costs $0.50 and $3.00. That makes Qwen3.6 Plus about 85% cheaper for the same work.
How do you compare the two?
We use the 35 benchmark tests both models have published scores on. The verdict counts the 26 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 9 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.