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Gemma 4 26B A4BvsGPT-5.4 Pro

GPT-5.4 Pro leads 2 of 2 shared benchmarks. GPT-5.4 Pro has the larger context window (1.1M tokens).

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

Shared benchmarks
0 – 2
GPT-5.4 Pro leads
Cheaper per token
list price, input + output
Larger context
GPT-5.4 Pro
1.1M tokens
Provider uptime (30d)
100% · 94.8052%
Google · OpenAI
Gemma 4 26B A4B
Google · released 2026-04-02
textvision
Context
256K
Max out
Input /1M
Output /1M
Cached /1M
Scores
6 · 5 core
GPT-5.4 Pro
OpenAI · released 2026-03-05
textvision
Context
1.1M
Max out
128K
Input /1M
$30
Output /1M
$180
Cached /1M
Scores
13 · 8 core
Quality

Benchmark matrix

BenchmarkGemma 4 26B A4BGPT-5.4 ProΔEdge
Reported by both · 2
GPQA Diamond82.3% 94.4% -12.1 ptGPT-5.4 Pro
Humanity's Last Exam (no tools)8.7% 42.7% -34 ptGPT-5.4 Pro
Only Gemma 4 26B A4B reports · 4
MMLU-Pro82.6% not reported
AIME 202688.3% not reported
LMArena Elo1434.5 not reported
LiveCodeBench v677.1% not reported
Only GPT-5.4 Pro reports · 10
ARC-AGI-1 (Verified)not reported94.5%
ARC-AGI-2 (Verified)not reported83.3%
BrowseCompnot reported89.3%
FrontierMath Tier 1-3not reported50%
FrontierMath Tier 4not reported38%
FrontierMath Tier 4 v2 (Epoch AI run)not reported58.5% epoch
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported82.5% epoch
GDPval (wins or ties)not reported82%
Humanity's Last Exam (with tools)not reported58.7%
SimpleQA Verifiednot reported46.3% epoch
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 26B A4B minus GPT-5.4 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 26B A4BGPT-5.4 ProEdge
Context window256K tokens1.1M tokensGPT-5.4 Pro
Max output128K tokens
Input price / 1M$30
Output price / 1M$180
Cached input / 1M
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$210
Modalitiestext · visiontext · visionTie
Released2026-04-022026-03-05
Cited benchmark scores613
Reliability

Provider status

All providers
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GPT-5.4 Pro vs …

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Public benchmarks are a starting point. Run Gemma 4 26B A4B and GPT-5.4 Pro on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.