ModelsCompareBest forBenchmarksStatusPricingAPI
Compare / head-to-head

GPT-5.2 ProvsNVIDIA Nemotron 3 Ultra 550B-A55B NVFP4

GPT-5.2 Pro leads 3 of 3 shared benchmarks. NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 has the larger context window (1M tokens).

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
list price, input + output
Larger context
NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4
1M tokens
Provider uptime (30d)
94.2446% · 100%
OpenAI · NVIDIA
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
NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4
NVIDIA · released 2026-06-04
text
Context
1M
Max out
Input /1M
Output /1M
Cached /1M
Scores
6 · 4 core
Quality

Benchmark matrix

BenchmarkGPT-5.2 ProNVIDIA Nemotron 3 Ultra 550B-A55B NVFP4ΔEdge
Reported by both · 3
GPQA Diamond93.2% 87.9% +5.3 ptGPT-5.2 Pro
Humanity's Last Exam (no tools)36.6% 26.1% +10.5 ptGPT-5.2 Pro
BrowseComp77.9% 41.4% +36.5 ptGPT-5.2 Pro
Only GPT-5.2 Pro reports · 7
AIME 2025100% not reported
ARC-AGI-1 (Verified)90.5% not reported
ARC-AGI-2 (Verified)54.2% not reported
FrontierMath Tier 4 v2 (Epoch AI run)46% epochnot reported
FrontierMath Tiers 1-3 v2 (Epoch AI run)74% epochnot reported
GDPval (wins or ties)74.1% not reported
Humanity's Last Exam (with tools)50% not reported
Only NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 reports · 3
SWE-bench Verifiednot reported69.7%
LMArena Elonot reported1444.7
Terminal-Bench 2.1not reported53.9%
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 NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 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 ProNVIDIA Nemotron 3 Ultra 550B-A55B NVFP4Edge
Context window400K tokens1M tokensNVIDIA Nemotron 3 Ultra 550B-A55B NVFP4
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 · visiontextGPT-5.2 Pro
Released2025-12-112026-06-04
Cited benchmark scores106
Reliability

Provider status

All providers
More matchups

GPT-5.2 Pro vs …

More matchups

NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 vs …

Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run GPT-5.2 Pro and NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.