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Gemma 4 26B A4B vs GPT-5 Nano

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Gemma 4 26B A4B and GPT-5 Nano.

Google

Gemma 4 26B A4B

Gemma 4 26B A4B IT is an instruction-tuned Mixture-of-Experts (MoE) model from Google DeepMind. Despite 25.2B total parameters, only 3.8B activate per token during inference โ€” delivering near-31B quality at...

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OpenAI

GPT-5 Nano

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

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Technical Specifications

SpecificationGemma 4 26B A4BGPT-5 Nano
ProviderGoogleOpenAI
Context Window262,144 tokens400,000 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2026-04-032025-08-07

API Pricing Comparison

Input Price per Million Tokens

Gemma 4 26B A4B

$0.06

GPT-5 Nano

$0.05

Output Price per Million Tokens

Gemma 4 26B A4B

$0.33

GPT-5 Nano

$0.40

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Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

Gemma 4 26B A4B Quirks & Gotchas

No developer gotchas reported.

GPT-5 Nano Quirks & Gotchas

No developer gotchas reported.