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Compare / head-to-head

GPT-5.2 ProvsGPT-5 Pro

GPT-5.2 Pro leads 3 of 3 shared benchmarks. GPT-5 Pro is 1.4x cheaper per token. Both offer a 400K-token context window.

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
3 – 0
GPT-5.2 Pro leads
Cheaper per token
GPT-5 Pro
1.4x cheaper, input + output
Larger context
Tie
both 400K tokens
Provider uptime (30d)
94.9045%
OpenAI
GPT-5.2 Pro
OpenAI · released 2025-12-11
textvision
Context
400K
Max out
128K
Input /1M
$21
Output /1M
$168
Cached /1M
Scores
10 · 6 core
GPT-5 Pro
OpenAI · released 2025-10-06
textvision
Context
400K
Max out
272K
Input /1M
$15
Output /1M
$120
Cached /1M
Scores
3 · 3 core
Quality

Benchmark matrix

BenchmarkGPT-5.2 ProGPT-5 ProΔEdge
Reported by both · 3
GPQA Diamond93.2% 88.4% +4.8 ptGPT-5.2 Pro
FrontierMath Tier 4 v2 (Epoch AI run)46% epoch19.5% epoch+26.5 ptGPT-5.2 Pro
FrontierMath Tiers 1-3 v2 (Epoch AI run)74% epoch55.8% epoch+18.2 ptGPT-5.2 Pro
Only GPT-5.2 Pro reports · 7
AIME 2025100% not reported
Humanity's Last Exam (no tools)36.6% not reported
ARC-AGI-1 (Verified)90.5% not reported
ARC-AGI-2 (Verified)54.2% not reported
BrowseComp77.9% not reported
GDPval (wins or ties)74.1% not reported
Humanity's Last Exam (with tools)50% not reported
Only GPT-5 Pro reports · 0
GPT-5 Pro reports nothing GPT-5.2 Pro does not.
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GPT-5.2 Pro minus GPT-5 Pro in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGPT-5.2 ProGPT-5 ProEdge
Context window400K tokens400K tokensTie
Max output128K tokens272K tokensGPT-5 Pro
Input price / 1M$21 $15 GPT-5 Pro
Output price / 1M$168 $120 GPT-5 Pro
Cached input / 1M
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$189$135GPT-5 Pro
Modalitiestext · visiontext · visionTie
Released2025-12-112025-10-06
Cited benchmark scores103
Reliability

OpenAI status

All providers
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Public benchmarks are a starting point. Run GPT-5.2 Pro and GPT-5 Pro on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.