Model Comparison

Gemini 2.0 Flash-Lite vs o1-previewWhich is better in 2026?

o1-preview shows notably better performance in the majority of benchmarks. Gemini 2.0 Flash-Lite is 205.9x cheaper per token.

Verdict: Gemini 2.0 Flash-Lite vs o1-preview — which is better?

Gemini 2.0 Flash-Lite (by Google) and o1-preview (by OpenAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 2.0 Flash-Lite outperforms in 1 benchmarks (MATH), while o1-preview is better at 2 benchmarks (GPQA, SimpleQA). o1-preview shows notably better performance in the majority of benchmarks.

On price, Gemini 2.0 Flash-Lite is roughly 205.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 2.0 Flash-Lite also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 2.0 Flash-Lite if…

  • cost matters — it's about 205.9x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Feb 2025

Choose o1-preview if…

  • you want the strongest raw capability — it leads on 2 of 3 shared benchmarks

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Gemini 2.0 Flash-Lite outperforms in 1 benchmarks (MATH), while o1-preview is better at 2 benchmarks (GPQA, SimpleQA).

o1-preview shows notably better performance in the majority of benchmarks.

Sun Jul 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 2.0 Flash-Lite costs less

For input processing, Gemini 2.0 Flash-Lite ($0.07/1M tokens) is 214.3x cheaper than o1-preview ($15.00/1M tokens).

For output processing, Gemini 2.0 Flash-Lite ($0.30/1M tokens) is 200.0x cheaper than o1-preview ($60.00/1M tokens).

In conclusion, o1-preview is more expensive than Gemini 2.0 Flash-Lite.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sun Jul 26 2026 • llm-stats.com
Google
Gemini 2.0 Flash-Lite
Input tokens$0.07
Output tokens$0.30
Best providerGoogle
OpenAI
o1-preview
Input tokens$15.00
Output tokens$60.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 2.0 Flash-Lite accepts 1,048,576 input tokens compared to o1-preview's 128,000 tokens. o1-preview can generate longer responses up to 32,768 tokens, while Gemini 2.0 Flash-Lite is limited to 8,192 tokens.

Google
Gemini 2.0 Flash-Lite
Input1,048,576 tokens
Output8,192 tokens
OpenAI
o1-preview
Input128,000 tokens
Output32,768 tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 2.0 Flash-Lite supports multimodal inputs, whereas o1-preview does not.

Gemini 2.0 Flash-Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 2.0 Flash-Lite

Text
Images
Audio
Video

o1-preview

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 2.0 Flash-Lite

Proprietary

Closed source

o1-preview

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.0 Flash-Lite was released on 2025-02-05, while o1-preview was released on 2024-09-12.

Gemini 2.0 Flash-Lite is 5 months newer than o1-preview.

Gemini 2.0 Flash-Lite

Feb 5, 2025

1.5 years ago

4mo newer
o1-preview

Sep 12, 2024

1.9 years ago

Knowledge Cutoff

When training data ends

Gemini 2.0 Flash-Lite has a documented knowledge cutoff of 2024-06-01, while o1-preview's cutoff date is not specified.

We can confirm Gemini 2.0 Flash-Lite's training data extends to 2024-06-01, but cannot make a direct comparison without o1-preview's cutoff date.

Gemini 2.0 Flash-Lite

Jun 2024

o1-preview

—

Provider Availability

Gemini 2.0 Flash-Lite is available from Google. o1-preview is available from OpenAI, Azure.

Gemini 2.0 Flash-Lite

google logo
Google
Input Price:Input: $0.07/1MOutput Price:Output: $0.30/1M

o1-preview

openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M
azure logo
Azure
Input Price:Input: $16.50/1MOutput Price:Output: $66.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (1,048,576 tokens)
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
Higher MATH score (86.8% vs 85.5%)
OpenAI
Higher GPQA score (73.3% vs 51.5%)
Higher SimpleQA score (42.4% vs 21.7%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 2.0 Flash-Lite and o1-preview side-by-side, then vote on the output you prefer.

Gemini 2.0 Flash-Lite
✓ Preferred
o1-preview
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 2.0 Flash-Lite
OpenAI
o1-preview

FAQ

Common questions about Gemini 2.0 Flash-Lite vs o1-preview.

Which is better, Gemini 2.0 Flash-Lite or o1-preview?

o1-preview shows notably better performance in the majority of benchmarks. Gemini 2.0 Flash-Lite is made by Google and o1-preview is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 2.0 Flash-Lite compare to o1-preview in benchmarks?

Gemini 2.0 Flash-Lite scores MATH: 86.8%, FACTS Grounding: 83.6%, Global-MMLU-Lite: 78.2%, MMLU-Pro: 71.6%, MMMU: 68.0%. o1-preview scores MGSM: 90.8%, MMLU: 90.8%, MATH: 85.5%, GPQA: 73.3%, LiveBench: 52.3%.

Is Gemini 2.0 Flash-Lite cheaper than o1-preview?

Gemini 2.0 Flash-Lite is 214.3x cheaper for input tokens. Gemini 2.0 Flash-Lite costs $0.07/M input and $0.30/M output via google. o1-preview costs $15.00/M input and $60.00/M output via openai.

What are the context window sizes for Gemini 2.0 Flash-Lite and o1-preview?

Gemini 2.0 Flash-Lite supports 1.0M tokens and o1-preview supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 2.0 Flash-Lite and o1-preview?

Key differences include context window (1.0M vs 128K), input pricing ($0.07 vs $15.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 2.0 Flash-Lite and o1-preview?

Gemini 2.0 Flash-Lite is developed by Google and o1-preview is developed by OpenAI.

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