BenchLeader

GPT-5.2 vs Qwen3 6

Verdict
  • Qwen3 6 (max) leads on quality: 63.3 vs 61.6.
  • GPT-5.2 is stronger in composite, human preference, long context, multimodal.
  • Qwen3 6 (max) is stronger in agents & tools, coding, instruction following, knowledge, reasoning, maths.
  • Qwen3 6 (max) is 1.6× cheaper ($2.96 vs $4.81 per 1M blended).
MetricGPT-5.2Qwen3 6 (max)
BenchLeader Index61.663.3
Agents & tools score61.272.0
Coding score53.758.2
Composite score67.564.9
Human preference score67.965.9
Instruction following score67.474.2
Knowledge score61.164.0
Long context score67.966.9
Multimodal score59.9
Reasoning score61.363.2
Maths score64.2
Blended price $/M$4.81$2.96
Output speed68 tok/s59 tok/s
Time to first answer129.4 s38.5 s
Context window400k246k
GPQA Diamond87.4%
OTIS Mock AIME91.1%
SWE-bench Verified (Epoch)76.7%
SimpleQA Verified52.0%
Humanity's Last Exam27.8%
Terminal-Bench64.9%
SimpleBench45.8%63.0%
Remote Labor Index2.1%
APEX-Agents23.0%
Epoch Capabilities Index153.5149.3
LMArena Text14761460
LMArena Hard Prompts14971482
LMArena Coding15151509
LMArena WebDev14171479
LMArena Vision1268
AA Intelligence Index30.428.4
IFBench75.4%76.6%
AA-LCR82.7%80.7%
AA-Omniscience-0.99.2
Terminal-Bench Hard47.0%43.9%
GPQA Diamond (AA)90.3%88.8%
Humanity's Last Exam (AA)37.7%30.8%
τ²-Bench Telecom (AA)84.8%95.9%
CorpFin66.5%
SWE-bench (Vals)72.8%
SWE-Bench Pro29.9%
VISTA46.6%
MultiNRC42.2%
TutorBench53.5%
Kagi LLM Benchmark73.3%
SWE-bench Verified (bash only)69.0%
ARC-AGI-194.5%
ARC-AGI-272.9%
BFCL Overall55.9%

Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.

GPT-5.2 vs Qwen3 6: questions

Is GPT-5.2 better than Qwen3 6?
Qwen3 6 (max) leads on quality: 63.3 vs 61.6. The BenchLeader Index combines every independent quality benchmark; Qwen3 6 (max) is ahead overall as of 2026-09-10, but check the category scores for your use.
Is GPT-5.2 better than Qwen3 6 for coding?
Qwen3 6 scores higher in coding (58 vs 54 on the category index, where 50 is average).
Is GPT-5.2 better than Qwen3 6 for agentic tasks?
Qwen3 6 scores higher in agentic tasks (72 vs 61 on the category index, where 50 is average).
Which is cheaper, GPT-5.2 or Qwen3 6?
Qwen3 6 is cheaper: $2.96 against $4.81 per million tokens, blended at three input tokens per output token.
Which is faster, GPT-5.2 or Qwen3 6?
GPT-5.2 streams faster: 68 against 59 output tokens per second.
Which has the larger context window?
GPT-5.2 accepts more context: 400k against 246k tokens.