BenchLeader

GPT-5 Pro vs Qwen3 8

Verdict
  • Qwen3 8 (max) leads on quality: 63.6 vs 60.8.
  • GPT-5 Pro is stronger in knowledge, multimodal.
  • Qwen3 8 (max) is stronger in reasoning, agents & tools, coding, composite, human preference, long context, maths.
  • Qwen3 8 (max) is 15× cheaper ($2.67 vs $41.25 per 1M blended).
MetricGPT-5 ProQwen3 8 (max)
BenchLeader Index60.863.6
Knowledge score68.062.3
Multimodal score67.467.2
Reasoning score57.668.1
Agents & tools score56.0
Coding score69.7
Composite score70.9
Human preference score68.3
Long context score65.7
Maths score62.4
Blended price $/M$41.25$2.67
Output speed38 tok/s
Time to first answer55.3 s
Context window400k1M
Humanity's Last Exam31.6%
SimpleBench61.6%
SciCode52.9%
ProofBench58.0%
Epoch Capabilities Index150.3156.6
LMArena Text1480
LMArena Hard Prompts1502
LMArena Coding1520
LMArena WebDev1670
LMArena Vision1313
LMArena Agent3.9
LiveBench78.5%
LiveBench Reasoning88.2%
LiveBench Coding72.9%
LiveBench Agentic Coding64.7%
LiveBench Mathematics91.3%
LiveBench Data Analysis78.4%
LiveBench Language79.7%
AA Intelligence Index40.3
AA-LCR78.3%
MMMU-Pro82.3%
AA-Omniscience3.4
GPQA Diamond (AA)92.7%
Humanity's Last Exam (AA)43.0%
SciCode (AA)53.2%
LiveCodeBench87.8%
MMLU-Pro88.6%
IOI73.0%
LegalBench83.6%
CorpFin65.8%
TaxEval75.5%
Terminal-Bench 2.1 (Vals)67.4%
SWE-bench (Vals)85.6%
GPQA Diamond (Vals)93.7%
Vals Index51.8
PRBench Finance51.1%
PRBench Legal49.9%
VISTA52.4%
MultiNRC65.2%
Kagi LLM Benchmark76.8%
ARC-AGI-170.2%
ARC-AGI-218.3%

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

GPT-5 Pro vs Qwen3 8: questions

Is GPT-5 Pro better than Qwen3 8?
Qwen3 8 (max) leads on quality: 63.6 vs 60.8. The BenchLeader Index combines every independent quality benchmark; Qwen3 8 (max) is ahead overall as of 2026-09-10, but check the category scores for your use.
Which is cheaper, GPT-5 Pro or Qwen3 8?
Qwen3 8 is cheaper: $2.67 against $41.25 per million tokens, blended at three input tokens per output token.
Which has the larger context window?
Qwen3 8 accepts more context: 1M against 400k tokens.