Gemini 2.0 Flash Thinking vs o1-preview
Gemini 2.0 Flash Thinking and o1-preview are closely matched at 17.0 and 16.7 on the LLM Stats Score.
Google · OpenAI · Updated for 2026
Which is better?
Gemini 2.0 Flash Thinking and o1-preview are closely matched on the overall LLM Stats Score at 17.0 and 16.7.
In the 2 individual benchmarks reported for both models, Gemini 2.0 Flash Thinking wins 2; 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 value its reported benchmark strengths — it wins 2 of 2 exact shared results
- you want the most recent training data — it shipped Jan 2025
Choose o1-preview
- you want predictable pricing at $15.00/M input and $60.00/M output
At a glance
The differences that matter most.
Individual benchmarks
3 reported for Gemini 2.0 Flash Thinking · 8 for o1-preview
Gemini 2.0 Flash Thinking outperforms in 2 benchmarks (AIME 2024, GPQA), while o1-preview is better at 0 benchmarks.
Gemini 2.0 Flash Thinking 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-preview specifies input context (128,000 tokens). Only o1-preview specifies output context (32,768 tokens).
Input capabilities
Documented input modalities across available providers
Gemini 2.0 Flash Thinking supports multimodal inputs, whereas o1-preview 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-preview
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-preview was released on 2024-09-12.
Gemini 2.0 Flash Thinking is 4 months newer than o1-preview.
Jan 21, 2025
1.6 years ago
4mo newerSep 12, 2024
2.0 years ago
Knowledge Cutoff
When training data ends
Gemini 2.0 Flash Thinking has a documented knowledge cutoff of 2024-08-01, while o1-preview'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-preview'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-preview side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 2.0 Flash Thinking vs o1-preview.