GPT-5.4 vs Qwen3.6 27B
Wins 7 of 8 areas
Coding · Agents · Reasoning · Images and charts · Math · Long documents · Following instructions
Wins 0 of 8 areas
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GPT-5.4 is the stronger all-rounder.Qwen3.6 27B is cheaper.
Scores updated · 37 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 software60GPT-5.46 of 7 tests · 1 tie
- MathCompetition and research-level math50GPT-5.45 of 5 tests
- ReasoningHard problems that need careful thinking40GPT-5.44 of 4 tests
- AgentsCarrying out multi-step tasks on its own20GPT-5.42 of 2 tests
- Images and chartsUnderstanding pictures, charts and video20GPT-5.42 of 2 tests
- Following instructionsDoing exactly what it is asked20GPT-5.42 of 2 tests
- Long documentsFinding answers in very long texts10GPT-5.41 of 1 test
- FactsGetting facts right instead of making them up11Even1 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 27B costs 76% 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-5.4 pulls ahead
- Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+43.5points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+31.3points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+22.9points ahead
Where Qwen3.6 27B pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+42.4points ahead
Every test, side by side
All 37 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5.4
- Terminal-Bench HardGPT-5.4 by 22.857.634.8+22.8
- Terminal-Bench 2.1GPT-5.4 by 17.678.360.7+17.6
- LiveBench · Agentic CodingGPT-5.4 by 14.553.839.3+14.5
- SciCodeGPT-5.4 by 13.856.642.8+13.8
- LiveBench · CodingGPT-5.4 by 5.777.571.8+5.7
- SWE-bench ProGPT-5.4 by 4.257.753.5+4.2
- SWE-bench Multilingualtie71.771.3tie
AgentsGPT-5.4
- τ-Bench V3 · BankingGPT-5.4 by 22.939.616.7+22.9
- GDPValGPT-5.4 by 1337.424.4+13
ReasoningGPT-5.4
- CritPtGPT-5.4 by 22.323.41.1+22.3
- Humanity's Last ExamGPT-5.4 by 20.643.723.1+20.6
- LiveBench · ReasoningGPT-5.4 by 17.888.170.3+17.8
- GPQA DiamondGPT-5.4 by 7.89284.2+7.8
FactsEven
- AA-Omniscience · Non-hallucinationQwen3.6 27B by 42.48.350.7+42.4
- AA-Omniscience · AccuracyGPT-5.4 by 31.350.919.6+31.3
Images and chartsGPT-5.4
- CharXiv (RQ)GPT-5.4 by 4.482.878.4+4.4
- MMMU-ProGPT-5.4 by 3.878.474.6+3.8
MathGPT-5.4
- FrontierMath Tiers 1-3 (v2)GPT-5.4 by 43.578.635.1+43.5
- LiveBench · MathematicsGPT-5.4 by 14.394.279.9+14.3
- HMMT Feb. 2026GPT-5.4 by 13.497.784.3+13.4
- IMOAnswerBenchGPT-5.4 by 10.691.480.8+10.6
- AIME 2026GPT-5.4 by 5.199.294.1+5.1
Following instructionsGPT-5.4
- LiveBench · Instruction FollowingGPT-5.4 by 1770.253.2+17
- IFBenchGPT-5.4 by 6.373.967.6+6.3
Other results12 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.
- DeepSWE 1.1GPT-5.4 by 38.75213.3+38.7
- AA-OmniscienceGPT-5.4 by 25.85.8-20+25.8
- AA Agentic IndexGPT-5.4 by 24.144.220.1+24.1
- livebench_languageGPT-5.4 by 19.382.663.3+19.3
- AA IntelligenceGPT-5.4 by 17.63921.4+17.6
- Artificial Analysis Coding IndexGPT-5.4 by 17.471.153.7+17.4
- Terminal-Bench 2.0GPT-5.4 by 15.875.159.3+15.8
- livebench_data_analysisGPT-5.4 by 8.979.370.4+8.9
- τ²-Bench Telecom (AA run)Qwen3.6 27B by 7.187.194.2+7.1
- HMMT Nov. 2025GPT-5.4 by 5.195.890.7+5.1
- NL2RepoGPT-5.4 by 5.141.336.2+5.1
- MMLU-ProGPT-5.4 by 1.387.586.2+1.3
Questions people ask
Which is better, GPT-5.4 or Qwen3.6 27B?
GPT-5.4 wins seven of the eight areas we test: coding, agents, reasoning, images and charts, math, long documents and following instructions. Qwen3.6 27B wins none, but costs 76% less. They are level on facts.
Which is better for coding?
GPT-5.4. It wins 6 of the 7 coding tests both models report; Qwen3.6 27B wins none, and 1 is a tie.
Which is cheaper?
GPT-5.4 costs $2.50 per million input tokens and $15.00 per million output tokens; Qwen3.6 27B costs $0.60 and $3.60. That makes Qwen3.6 27B about 76% cheaper for the same work.
How do you compare the two?
We use the 37 benchmark tests both models have published scores on. The verdict counts the 25 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 12 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.