Gemini 2.5 Flash vs Kimi K2 0905 (Comparative Analysis)
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Comparative Analysis: Gemini 2.5 Flash vs. Kimi K2 0905
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Overview
Gemini 2.5 Flash was released 2 months before Kimi K2 0905.
 Gemini 2.5 Flash |  Kimi K2 0905 | |
|---|---|---|
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 | 100.4K tokens |
Release Date When this model first became publicly available | June 17, 2025 1 year ago June 17th, 2025 | September 4, 2025 10 months ago September 4th, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Gemini 2.5 Flash | Kimi K2 0905 | |
|---|---|---|
Input Types Supported input formats | 📁File🖼️Image📝Text🎵Audio🎬Video | 📝Text |
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 OutputReasoning ModeContent Moderation |
Open Source Model availability | Proprietary | Available on HuggingFace → |
Pricing
Gemini 2.5 Flash is roughly 0.5x less expensive compared to Kimi K2 0905 for input tokens and roughly 1.0x less expensive for output tokens.
| Gemini 2.5 Flash | Kimi K2 0905 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.30 per million tokens | $0.60 per million tokens |
Output Token Cost Cost per million outut tokens | $2.50 per million tokens | $2.50 per million tokens |
Benchmarks
Compare relevant benchmarks between Gemini 2.5 Flash and Kimi K2 0905.
| Gemini 2.5 Flash | Kimi K2 0905 | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
At a Glance
Quick overview of what makes Gemini 2.5 Flash and Kimi K2 0905 unique.
Gemini 2.5 Flash 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. Reasonably priced at $0.30/M input and $2.50/M output tokens. Released June 17th, 2025.Kimi K2 0905 by MoonshotAI can use external tools and APIs, generates structured data. It can handle standard conversations with its 262.1K token context window. Reasonably priced at $0.60/M input and $2.50/M output tokens. Released September 4th, 2025.Explore More Comparisons
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Compare Kimi K2 0905 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