Gemini 2.0 Flash Thinking vs o4-mini
o4-mini leads the LLM Stats Score 27.7 to 17.0.
Google · OpenAI · Updated for 2026
Which is better?
o4-mini leads the overall LLM Stats Score 27.7 to 17.0, ranking #132 overall.
In the 3 individual benchmarks reported for both models, o4-mini wins 3; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 2.0 Flash Thinking
- you are already invested in the Google ecosystem
Choose o4-mini
- overall performance matters — it scores 27.7 and ranks #132 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 3 of 3 exact shared results
- you want the most recent training data — it shipped Apr 2025
At a glance
The differences that matter most.
Individual benchmarks
3 reported for Gemini 2.0 Flash Thinking · 14 for o4-mini
Gemini 2.0 Flash Thinking outperforms in 0 benchmarks, while o4-mini is better at 3 benchmarks (AIME 2024, GPQA, MMMU).
o4-mini significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only o4-mini specifies input context (200,000 tokens). Only o4-mini specifies output context (100,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Gemini 2.0 Flash Thinking and o4-mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 2.0 Flash Thinking
o4-mini
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini 2.0 Flash Thinking was released on 2025-01-21, while o4-mini was released on 2025-04-16.
o4-mini is 3 months newer than Gemini 2.0 Flash Thinking.
Jan 21, 2025
1.6 years ago
Apr 16, 2025
1.4 years ago
2mo newerKnowledge Cutoff
When training data ends
Gemini 2.0 Flash Thinking has a knowledge cutoff of 2024-08-01, while o4-mini has a cutoff of 2024-05-31.
Gemini 2.0 Flash Thinking has more recent training data (up to 2024-08-01), making it potentially better informed about events through that date compared to o4-mini (2024-05-31).
Aug 2024
3 mo newerMay 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 2.0 Flash Thinking and o4-mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 2.0 Flash Thinking vs o4-mini.