Gemini 3.1 Flash Lite vs Kimi K2.5 (Comparative Analysis)
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Comparative Analysis: Gemini 3.1 Flash Lite vs. Kimi K2.5
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Overview
Kimi K2.5 was released 3 months before Gemini 3.1 Flash Lite.
 Gemini 3.1 Flash Lite |  Kimi K2.5 | |
|---|---|---|
Model Provider The organization behind this AI's development | Google | MoonshotAI |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 262.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 65.5K tokens | 262.1K tokens |
Release Date When this model first became publicly available | May 7, 2026 2 months ago May 7th, 2026 | January 27, 2026 6 months ago January 27th, 2026 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Gemini 3.1 Flash Lite | Kimi K2.5 | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image🎬Video📁File🎵Audio | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Enabled by defaultEffort: High, Medium, Low, MinimalDefault: Minimal | Enabled by default |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Gemini | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Proprietary | Available on HuggingFace → |
Pricing
Gemini 3.1 Flash Lite is roughly 0.4x less expensive compared to Kimi K2.5 for input tokens and roughly 0.5x less expensive for output tokens.
| Gemini 3.1 Flash Lite | Kimi K2.5 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.25 per million tokens | $0.57 per million tokens |
Output Token Cost Cost per million output tokens | $1.50 per million tokens | $2.85 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.014 per search | Not specified |
Cache Read Cost Cost to reuse cached input tokens | $0.02 per million tokens | $0.10 per million tokens |
Cache Write Cost Cost to write input tokens to the cache | $0.08 per million tokens | Not specified |
Reasoning Token Cost Cost for internal reasoning tokens | $1.50 per million tokens | Not specified |
Image Input Cost Additional cost for each image input | $0.00000025 per image | Not specified |
Audio Input Cost Additional cost for audio input | $0.0000005 per unit | Not specified |
Audio Cache Cost Cost to reuse cached audio input tokens | $0.05 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Gemini 3.1 Flash Lite and Kimi K2.5.
| Gemini 3.1 Flash Lite | Kimi K2.5 | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | Benchmark not available. | 35.4 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | Benchmark not available. | 46.8 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | Benchmark not available. | 21.7 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | Benchmark not available. | 1,275 Elo (#24 in Website (55.5% win rate)) |
At a Glance
Quick overview of what makes Gemini 3.1 Flash Lite and Kimi K2.5 unique.
Gemini 3.1 Flash Lite by Google understands both text and images, handles audio, analyzes video, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.25/M input and $1.50/M output tokens. Released May 7th, 2026.Kimi K2.5 by MoonshotAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 262.1K token context window. Reasonably priced at $0.57/M input and $2.85/M output tokens. Released January 27th, 2026.Explore More Comparisons
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Compare Kimi K2.5 with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
Multilingual translation tasks