Gemini 2.5 Flash (Free) vs Gemini 3.1 Flash Lite Preview
Compare Gemini 2.5 Flash (Free) and Gemini 3.1 Flash Lite Preview on key metrics including price, context length, throughput, and other model features.
AuthorGoogle
Context Length1.0M
Supports Tools
Gemini 2.5 Flash is Google’s high-performance workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks. Includes built-in "thinking" capabilities and is configurable through a "max tokens for reasoning" parameter for fine-tuned performance.
Activity
Last 14 daysPrompt
2BCompletion
555MTotal
3BStartup
Startup
Latency (p50)1.20s
Throughput (p50)136.4 tok/s
Pricing
InputFree
OutputFree
Cached input-
Features
Input Modalitiestext, image, file, audio
Output Modalitiestext
Supported EndpointsChat Completions
Vision
Supports Tools
AuthorGoogle
Context Length1.0M
Supports Tools
Gemini 3.1 Flash Lite Preview is Google’s high-efficiency model designed for high-throughput, high-volume use cases. It delivers better overall quality than Gemini 2.5 Flash Lite and comes close to Gemini 2.5 Flash performance across core capabilities. Enhancements include audio input/ASR, RAG snippet ranking, translation, data extraction, and code completion. It supports the full range of thinking levels (minimal, low, medium, high) to enable fine-grained cost/performance tuning. Pricing is set at half the cost of Gemini 3 Flash.
Activity
Last 14 daysPrompt
502MCompletion
57MTotal
558MStartup
Startup
Latency (p50)0.88s
Throughput (p50)107.5 tok/s
Pricing
Input$0.13/M tokens
Output$0.75/M tokens
Cached input$0.01/M tokens
Features
Input Modalitiestext, image, audio, file
Output Modalitiestext
Supported EndpointsChat Completions
Vision
Supports Tools