Gemini 1.5 Flash vs o4-mini
Google Gemini 1.5 Flash | OpenAI o4-mini | |
|---|---|---|
| Overview | ||
| Company | OpenAI | |
| Release date | May 14 2024 | Apr 16 2025 |
| Access | Proprietary | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 8% |
| Timeline | ||
| Release gap | Gemini 1.5 Flash shipped 337 days before o4-mini | |
Which is better: Gemini 1.5 Flash or o4-mini?
Gemini 1.5 Flash and o4-mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 1.5 Flash shipped 337 days before o4-mini, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — Gemini 1.5 Flash and o4-mini don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemini 1.5 Flash was released by Google on May 14 2024.
o4-mini was released by OpenAI on Apr 16 2025.
Other comparisons
Gemini 1.5 Flash vs Claude Sonnet 5o4-mini vs Claude Sonnet 5Gemini 1.5 Flash vs Muse Spark 1.1o4-mini vs Muse Spark 1.1Gemini 1.5 Flash vs Grok 4.5o4-mini vs Grok 4.5Gemini 1.5 Flash vs DeepSeek-V4-Proo4-mini vs DeepSeek-V4-ProGemini 1.5 Flash vs Mistral Medium 3.5o4-mini vs Mistral Medium 3.5Gemini 1.5 Flash vs Kimi K2.7 Codeo4-mini vs Kimi K2.7 Code