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Gemma 4 26B A4BvsGPT-5.6 Terra

GPT-5.6 Terra leads 1 of 1 shared benchmark. GPT-5.6 Terra 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 – 1
GPT-5.6 Terra leads
Cheaper per token
list price, input + output
Larger context
GPT-5.6 Terra
1.1M 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-5.6 Terra
OpenAI · released 2026-07-09
textvision
Context
1.1M
Max out
128K
Input /1M
$2
Output /1M
$12
Cached /1M
$0.2
Scores
8 · 6 core
Quality

Benchmark matrix

BenchmarkGemma 4 26B A4BGPT-5.6 TerraΔEdge
Reported by both · 1
GPQA Diamond82.3% 92.9% -10.6 ptGPT-5.6 Terra
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-5.6 Terra reports · 6
DeepSWE v1.1not reported69.6%
FrontierMath Tier 4 v2 (Epoch AI run)not reported70.7% epoch
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported86% epoch
OTIS Mock AIME 2024-2025 (Epoch AI run)not reported99.7% epoch
SimpleQA Verifiednot reported43.2% epoch
SWE-Bench Pronot reported63.4%
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-5.6 Terra 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-5.6 TerraEdge
Context window256K tokens1.1M tokensGPT-5.6 Terra
Max output128K tokens
Input price / 1M$2
Output price / 1M$12
Cached input / 1M$0.2
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$14
Modalitiestext · visiontext · visionTie
Released2026-04-022026-07-09
Cited benchmark scores68
Reliability

Provider status

All providers
More matchups

GPT-5.6 Terra vs …

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Public benchmarks are a starting point. Run Gemma 4 26B A4B and GPT-5.6 Terra on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.