Gemini 2.0 Flash Thinking vs o1
Gemini 2.0 Flash Thinking and o1 are closely matched at 16.7 and 20.9 on the LLM Stats Score.
Google · OpenAI · Updated for 2026
Which is better?
Gemini 2.0 Flash Thinking and o1 are closely matched on the overall LLM Stats Score at 16.7 and 20.9.
In the 3 individual benchmarks reported for both models, o1 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 want the most recent training data — it shipped Jan 2025
Choose o1
- you value its reported benchmark strengths — it wins 3 of 3 exact shared results
At a glance
The differences that matter most.
Individual benchmarks
3 reported for Gemini 2.0 Flash Thinking · 19 for o1
Gemini 2.0 Flash Thinking outperforms in 0 benchmarks, while o1 is better at 3 benchmarks (AIME 2024, GPQA, MMMU).
o1 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 o1 specifies input context (200,000 tokens). Only o1 specifies output context (100,000 tokens).
Input capabilities
Documented input modalities across available providers
Gemini 2.0 Flash Thinking supports multimodal inputs, whereas o1 does not.
Gemini 2.0 Flash Thinking can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemini 2.0 Flash Thinking
o1
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 o1 was released on 2024-12-17.
Gemini 2.0 Flash Thinking is 1 month newer than o1.
Jan 21, 2025
1.7 years ago
1mo newerDec 17, 2024
1.8 years ago
Knowledge Cutoff
When training data ends
Gemini 2.0 Flash Thinking has a documented knowledge cutoff of 2024-08-01, while o1's cutoff date is not specified.
We can confirm Gemini 2.0 Flash Thinking's training data extends to 2024-08-01, but cannot make a direct comparison without o1's cutoff date.
Aug 2024
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Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 2.0 Flash Thinking and o1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 2.0 Flash Thinking vs o1.