BenchLeader

GPT-5.5 vs Qwen3.8 Max (0902)

Verdict
  • GPT-5.5 leads on quality: 65.0 vs 57.1.
  • GPT-5.5 is stronger in agents & tools, coding, composite, human preference, instruction following, knowledge, long context, multimodal, reasoning.
  • Qwen3.8 Max (0902) (xhigh) is stronger in maths.
  • Qwen3.8 Max (0902) (xhigh) is 3.8× cheaper ($3.00 vs $11.25 per 1M blended).
  • GPT-5.5 streams 2.4× faster (91 vs 38 tokens per second).
MetricGPT-5.5Qwen3.8 Max (0902) (xhigh)
BenchLeader Index65.057.1
Agents & tools score67.6
Coding score57.2
Composite score71.1
Human preference score67.7
Instruction following score70.5
Knowledge score70.555.9
Long context score66.6
Multimodal score64.3
Reasoning score70.066.9
Maths score61.2
Blended price $/M$11.25$3.00
Output speed91 tok/s38 tok/s
Time to first answer49.6 s2.0 s
Context window1.1M1M
GPQA Diamond92.3%
FrontierMath Tiers 1–365.6%
FrontierMath Tier 434.1%
OTIS Mock AIME100.0%
SimpleQA Verified47.3%
Terminal-Bench84.7%
SimpleBench69.0%
Remote Labor Index6.3%
APEX-Agents38.5%
FrontierCode43.0%
Epoch Capabilities Index159.1
LMArena Text1476
LMArena Hard Prompts1498
LMArena Coding1509
LMArena WebDev1458
LMArena Vision1296
LMArena Agent2.8
AA Intelligence Index38.6
IFBench75.8%
AA-LCR84.3%
MMMU-Pro79.9%
AA-Omniscience20.5
Terminal-Bench Hard60.6%
GPQA Diamond (AA)93.5%
Humanity's Last Exam (AA)45.8%
SciCode (AA)55.8%
τ²-Bench Telecom (AA)93.9%
HiL-Bench39.7%
EQ-Bench 41315
Kagi LLM Benchmark88.8%

Data as of 2026-09-13. Best configuration of each model; every score links to its source on the model pages.

GPT-5.5 vs Qwen3.8 Max (0902): questions

Is GPT-5.5 better than Qwen3.8 Max (0902)?
GPT-5.5 leads on quality: 65.0 vs 57.1. The BenchLeader Index combines every independent quality benchmark; GPT-5.5 is ahead overall as of 2026-09-13, but check the category scores for your use.
Which is cheaper, GPT-5.5 or Qwen3.8 Max (0902)?
Qwen3.8 Max (0902) is cheaper: $3.00 against $11.25 per million tokens, blended at three input tokens per output token.
Which is faster, GPT-5.5 or Qwen3.8 Max (0902)?
GPT-5.5 streams faster: 91 against 38 output tokens per second.
Which has the larger context window?
GPT-5.5 accepts more context: 1.1M against 1M tokens.