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Gemma 4 12B UnifiedvsGPT-5.2 Pro

GPT-5.2 Pro leads 2 of 2 shared benchmarks. GPT-5.2 Pro has the larger context window (400K tokens).

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

Shared benchmarks
0 – 2
GPT-5.2 Pro leads
Cheaper per token
list price, input + output
Larger context
GPT-5.2 Pro
400K tokens
Provider uptime (30d)
100% · 94.2446%
Google · OpenAI
Gemma 4 12B Unified
Google · released 2026-06-03
textvisionaudio
Context
256K
Max out
Input /1M
Output /1M
Cached /1M
Scores
5 · 4 core
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
Quality

Benchmark matrix

BenchmarkGemma 4 12B UnifiedGPT-5.2 ProΔEdge
Reported by both · 2
GPQA Diamond78.8% 93.2% -14.4 ptGPT-5.2 Pro
Humanity's Last Exam (no tools)5.2% 36.6% -31.4 ptGPT-5.2 Pro
Only Gemma 4 12B Unified reports · 3
MMLU-Pro77.2% not reported
AIME 202677.5% not reported
LiveCodeBench v672% not reported
Only GPT-5.2 Pro reports · 8
AIME 2025not reported100%
ARC-AGI-1 (Verified)not reported90.5%
ARC-AGI-2 (Verified)not reported54.2%
BrowseCompnot reported77.9%
FrontierMath Tier 4 v2 (Epoch AI run)not reported46% epoch
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported74% epoch
GDPval (wins or ties)not reported74.1%
Humanity's Last Exam (with tools)not reported50%
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 Gemma 4 12B Unified minus GPT-5.2 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

SpecGemma 4 12B UnifiedGPT-5.2 ProEdge
Context window256K tokens400K tokensGPT-5.2 Pro
Max output128K tokens
Input price / 1M$21
Output price / 1M$168
Cached input / 1M
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$189
Modalitiestext · vision · audiotext · visionGemma 4 12B Unified
Released2026-06-032025-12-11
Cited benchmark scores510
Reliability

Provider status

All providers
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Which one wins on your data?

Public benchmarks are a starting point. Run Gemma 4 12B Unified and GPT-5.2 Pro on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.