BenchLeader

GPT-5.2 vs GPT-5 Pro

Verdict
  • GPT-5.2 and GPT-5 Pro are level on quality (61.6 vs 60.8).
  • GPT-5.2 is stronger in agents & tools, coding, composite, human preference, instruction following, long context, reasoning.
  • GPT-5 Pro is stronger in knowledge, multimodal.
  • GPT-5.2 is 8.6× cheaper ($4.81 vs $41.25 per 1M blended).
MetricGPT-5.2GPT-5 Pro
BenchLeader Index61.660.8
Agents & tools score61.2
Coding score53.7
Composite score67.5
Human preference score67.9
Instruction following score67.4
Knowledge score61.168.0
Long context score67.9
Multimodal score59.967.4
Reasoning score61.357.6
Blended price $/M$4.81$41.25
Output speed68 tok/s
Time to first answer129.4 s
Context window400k400k
Humanity's Last Exam27.8%31.6%
Terminal-Bench64.9%
SimpleBench45.8%61.6%
Remote Labor Index2.1%
APEX-Agents23.0%
Epoch Capabilities Index153.5150.3
LMArena Text1476
LMArena Hard Prompts1497
LMArena Coding1515
LMArena WebDev1417
LMArena Vision1268
AA Intelligence Index30.4
IFBench75.4%
AA-LCR82.7%
AA-Omniscience-0.9
Terminal-Bench Hard47.0%
GPQA Diamond (AA)90.3%
Humanity's Last Exam (AA)37.7%
τ²-Bench Telecom (AA)84.8%
SWE-Bench Pro29.9%
PRBench Finance51.1%
PRBench Legal49.9%
VISTA46.6%52.4%
MultiNRC42.2%65.2%
TutorBench53.5%
Kagi LLM Benchmark73.3%76.8%
SWE-bench Verified (bash only)69.0%
ARC-AGI-194.5%70.2%
ARC-AGI-272.9%18.3%
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 GPT-5 Pro: questions

Is GPT-5.2 better than GPT-5 Pro?
GPT-5.2 and GPT-5 Pro are level on quality (61.6 vs 60.8). The BenchLeader Index combines every independent quality benchmark; GPT-5.2 is ahead overall as of 2026-09-10, but check the category scores for your use.
Which is cheaper, GPT-5.2 or GPT-5 Pro?
GPT-5.2 is cheaper: $4.81 against $41.25 per million tokens, blended at three input tokens per output token.
Which has the larger context window?
Both accept 400k tokens of context.