Claude Opus 4.6 (Fast) vs Gemma 4 26B A4B

Compare Claude Opus 4.6 (Fast) from Anthropic and Gemma 4 26B A4B from Google on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Claude Opus 4.6 (Fast) vs Gemma 4 26B A4B : side-by-side summary

Claude Opus 4.6 (Fast) and Gemma 4 26B A4B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Opus 4.6 (Fast), from Anthropic, has a 1,000,000-token context window and is priced by the provider serving it on OpenRouter.

Gemma 4 26B A4B , from Google, has a 262,144-token context window and is priced at $0.042/M tokens input, $0.22/M tokens output on OpenRouter.

Context window

Claude Opus 4.6 (Fast): 1,000,000 tokens
Gemma 4 26B A4B : 262,144 tokens

Price

Claude Opus 4.6 (Fast): Pricing varies by provider
Gemma 4 26B A4B : $0.042/M tokens input, $0.22/M tokens output

Provided by

Claude Opus 4.6 (Fast): Anthropic
Gemma 4 26B A4B : Google

Claude Opus 4.6 (Fast) vs Gemma 4 26B A4B at a glance

Claude Opus 4.6 (Fast) vs Gemma 4 26B A4B comparison
Attribute	Claude Opus 4.6 (Fast)	Gemma 4 26B A4B
Input price	Pricing varies by provider	$0.042/M tokens
Output price	Pricing varies by provider	$0.22/M tokens
Context window	1,000,000 tokens	262,144 tokens
Intelligence Index	Not available	13.1
Coding Index	Not available	Not available
Agentic Index	Not available	Not available
Latency (p50)	Not available	1.46 s
Throughput (p50)	Not available	34.0 tok/s

Benchmark data updated Oct 5, 2026

Frequently asked questions

Which has the longer context window, Claude Opus 4.6 (Fast) or Gemma 4 26B A4B ?

Claude Opus 4.6 (Fast) has the longer context window at 1,000,000 tokens, compared with 262,144 tokens for Gemma 4 26B A4B .

Claude Opus 4.6 (Fast) vs Gemma 4 26B A4B

Claude Opus 4.6 (Fast) vs Gemma 4 26B A4B

Overview