Compare Google: Gemma 4 26B A4B by Google AI against o1 by OpenAI, context windows of 262K vs 128K, tested across 53 shared challenges. Updated April 2026.
Google: Gemma 4 26B A4B and o1 are both competitive models. Google: Gemma 4 26B A4B costs $0.13/M input tokens vs $15/M for o1. Context windows: 262K vs 128K tokens. Compare their real outputs side by side below.
Google: Gemma 4 26B A4B is made by google while o1 is from openai. Google: Gemma 4 26B A4B has a 262K token context window compared to o1's 128K. On pricing, Google: Gemma 4 26B A4B costs $0.13/M input tokens vs $15/M for o1.
No community votes yet. On paper, Google: Gemma 4 26B A4B has the edge — bigger model tier, newer, bigger context window.
Google: Gemma 4 26B A4B is 150x cheaper per token — worth considering if cost matters.
o1 uses 2.6x more transitions
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare Google: Gemma 4 26B A4B by Google AI against o1 by OpenAI, context windows of 262K vs 128K, tested across 53 shared challenges. Updated April 2026.
Google: Gemma 4 26B A4B and o1 are both competitive models. Google: Gemma 4 26B A4B costs $0.13/M input tokens vs $15/M for o1. Context windows: 262K vs 128K tokens. Compare their real outputs side by side below.
Google: Gemma 4 26B A4B is made by google while o1 is from openai. Google: Gemma 4 26B A4B has a 262K token context window compared to o1's 128K. On pricing, Google: Gemma 4 26B A4B costs $0.13/M input tokens vs $15/M for o1.
No community votes yet. On paper, Google: Gemma 4 26B A4B has the edge — bigger model tier, newer, bigger context window.
Google: Gemma 4 26B A4B is 150x cheaper per token — worth considering if cost matters.
o1 uses 2.6x more transitions
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

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36+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy