Compare ChatGPT-4o (March 2025) by OpenAI against Gemma 3n 4B by Google AI, in 4 community votes, chatgpt-4o (march 2025) wins 100% of head-to-head duels, context windows of 128K vs 33K, tested across 32 shared challenges. Updated April 2026.
ChatGPT-4o (March 2025) is the better choice overall, winning 100% of 4 blind community votes on Rival. ChatGPT-4o (March 2025) costs $5/M input tokens vs $0/M for Gemma 3n 4B. Context windows: 128K vs 33K tokens. Compare their real outputs side by side below.
ChatGPT-4o (March 2025) is made by openai while Gemma 3n 4B is from google. ChatGPT-4o (March 2025) has a 128K token context window compared to Gemma 3n 4B's 33K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $0/M for Gemma 3n 4B. In community voting, In 4 community votes, ChatGPT-4o (March 2025) wins 100% of head-to-head duels.
In 4 community votes, ChatGPT-4o (March 2025) wins 100% of head-to-head duels. ChatGPT-4o (March 2025) leads in Web Design. Based on blind community voting from the Rival open dataset of 4+ human preference judgments for this pair.
Pick ChatGPT-4o (March 2025). In 4 blind votes, ChatGPT-4o (March 2025) wins 100% of the time. That's not luck.
ChatGPT-4o (March 2025) particularly excels in Web Design.
ChatGPT-4o (March 2025) uses 94.5x more emoji
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 ChatGPT-4o (March 2025) by OpenAI against Gemma 3n 4B by Google AI, in 4 community votes, chatgpt-4o (march 2025) wins 100% of head-to-head duels, context windows of 128K vs 33K, tested across 32 shared challenges. Updated April 2026.
ChatGPT-4o (March 2025) is the better choice overall, winning 100% of 4 blind community votes on Rival. ChatGPT-4o (March 2025) costs $5/M input tokens vs $0/M for Gemma 3n 4B. Context windows: 128K vs 33K tokens. Compare their real outputs side by side below.
ChatGPT-4o (March 2025) is made by openai while Gemma 3n 4B is from google. ChatGPT-4o (March 2025) has a 128K token context window compared to Gemma 3n 4B's 33K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $0/M for Gemma 3n 4B. In community voting, In 4 community votes, ChatGPT-4o (March 2025) wins 100% of head-to-head duels.
In 4 community votes, ChatGPT-4o (March 2025) wins 100% of head-to-head duels. ChatGPT-4o (March 2025) leads in Web Design. Based on blind community voting from the Rival open dataset of 4+ human preference judgments for this pair.
Pick ChatGPT-4o (March 2025). In 4 blind votes, ChatGPT-4o (March 2025) wins 100% of the time. That's not luck.
ChatGPT-4o (March 2025) particularly excels in Web Design.
ChatGPT-4o (March 2025) uses 94.5x more emoji
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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15+ more head-to-head results. Free. Not a trick.
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27 fights queued
15+ 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