Model Comparison
Gemini 2.5 Flash-Lite vs GPT-3.5 Turbo
Gemini 2.5 Flash-Lite significantly outperforms across most benchmarks. Gemini 2.5 Flash-Lite is 4.3x cheaper per token.
Performance Benchmarks
Comparative analysis across standard metrics
Gemini 2.5 Flash-Lite outperforms in 2 benchmarks (GPQA, MMMU), while GPT-3.5 Turbo is better at 0 benchmarks.
Gemini 2.5 Flash-Lite significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Gemini 2.5 Flash-Lite ($0.10/1M tokens) is 5.0x cheaper than GPT-3.5 Turbo ($0.50/1M tokens).
For output processing, Gemini 2.5 Flash-Lite ($0.40/1M tokens) is 3.8x cheaper than GPT-3.5 Turbo ($1.50/1M tokens).
In conclusion, GPT-3.5 Turbo is more expensive than Gemini 2.5 Flash-Lite.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 2.5 Flash-Lite accepts 1,048,576 input tokens compared to GPT-3.5 Turbo's 16,385 tokens. Gemini 2.5 Flash-Lite can generate longer responses up to 65,536 tokens, while GPT-3.5 Turbo is limited to 4,096 tokens.
Input Capabilities
Supported data types and modalities
Gemini 2.5 Flash-Lite supports multimodal inputs, whereas GPT-3.5 Turbo does not.
Gemini 2.5 Flash-Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemini 2.5 Flash-Lite
GPT-3.5 Turbo
License
Usage and distribution terms
Gemini 2.5 Flash-Lite is licensed under Creative Commons Attribution 4.0 License, while GPT-3.5 Turbo uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Creative Commons Attribution 4.0 License
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini 2.5 Flash-Lite was released on 2025-06-17, while GPT-3.5 Turbo was released on 2023-03-21.
Gemini 2.5 Flash-Lite is 27 months newer than GPT-3.5 Turbo.
Jun 17, 2025
10 months ago
2.2yr newerMar 21, 2023
3.1 years ago
Knowledge Cutoff
When training data ends
Gemini 2.5 Flash-Lite has a knowledge cutoff of 2025-01-01, while GPT-3.5 Turbo has a cutoff of 2021-09-30.
Gemini 2.5 Flash-Lite has more recent training data (up to 2025-01-01), making it potentially better informed about events through that date compared to GPT-3.5 Turbo (2021-09-30).
Jan 2025
3.3 yr newerSep 2021
Provider Availability
Gemini 2.5 Flash-Lite is available from Google. GPT-3.5 Turbo is available from Azure, OpenAI.
Gemini 2.5 Flash-Lite
GPT-3.5 Turbo
Outputs Comparison
Key Takeaways
Detailed Comparison
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FAQ
Common questions about Gemini 2.5 Flash-Lite vs GPT-3.5 Turbo