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Gemma 4 26B A4BvsGPT-5

GPT-5 leads 1 of 1 shared benchmark. GPT-5 has the larger context window (400K tokens).

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

Shared benchmarks
0 – 1
GPT-5 leads
Cheaper per token
list price, input + output
Larger context
GPT-5
400K tokens
Provider uptime (30d)
100% · 94.2446%
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
OpenAI · released 2025-08-07
textvision
Context
400K
Max out
128K
Input /1M
$1.25
Output /1M
$10
Cached /1M
$0.125
Scores
9 · 8 core
Quality

Benchmark matrix

BenchmarkGemma 4 26B A4BGPT-5ΔEdge
Reported by both · 1
GPQA Diamond82.3% 86.2% epoch-3.9 ptGPT-5
Only Gemma 4 26B A4B reports · 5
MMLU-Pro82.6% not reported
AIME 202688.3% not reported
Humanity's Last Exam (no tools)8.7% not reported
LMArena Elo1434.5 not reported
LiveCodeBench v677.1% not reported
Only GPT-5 reports · 7
SWE-bench Verifiednot reported74.9%
AIME 2025not reported94.6%
FrontierMath Tier 4 v2 (Epoch AI run)not reported22% epoch
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported55.4% epoch
OTIS Mock AIME 2024-2025 (Epoch AI run)not reported91.4% epoch
SimpleQA Verifiednot reported50.1% epoch
SWE-bench Verified (Epoch AI run)not reported73.6% 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 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-5Edge
Context window256K tokens400K tokensGPT-5
Max output128K tokens
Input price / 1M$1.25
Output price / 1M$10
Cached input / 1M$0.125
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$11.25
Modalitiestext · visiontext · visionTie
Released2026-04-022025-08-07
Cited benchmark scores69
Reliability

Provider status

All providers
Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run Gemma 4 26B A4B and GPT-5 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.