Gemma 4 31B vs Kimi K2 Thinking (Comparative Analysis)
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Comparative Analysis: Gemma 4 31B vs. Kimi K2 Thinking
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Overview
Kimi K2 Thinking was released 4 months before Gemma 4 31B.
 Gemma 4 31B |  Kimi K2 Thinking | |
|---|---|---|
Model Provider The organization behind this AI's development | Google | MoonshotAI |
Input Context Window Maximum input tokens this model can process at once | 262.1K tokens | 262.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 262.1K tokens | 100.4K tokens |
Release Date When this model first became publicly available | April 2, 2026 3 months ago April 2nd, 2026 | November 6, 2025 8 months ago November 6th, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Gemma 4 31B | Kimi K2 Thinking | |
|---|---|---|
Input Types Supported input formats | 🖼️Image📝Text🎬Video | 📝Text |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Always enabled |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Gemma | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Available on HuggingFace → | Available on HuggingFace → |
Pricing
Gemma 4 31B is roughly 0.2x less expensive compared to Kimi K2 Thinking for input tokens and roughly 0.2x less expensive for output tokens.
| Gemma 4 31B | Kimi K2 Thinking | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.14 per million tokens | $0.60 per million tokens |
Output Token Cost Cost per million output tokens | $0.40 per million tokens | $2.50 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | Not specified | $0.15 per million tokens |
Benchmarks
Compare relevant benchmarks between Gemma 4 31B and Kimi K2 Thinking.
| Gemma 4 31B | Kimi K2 Thinking | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 29.4 (Artificial Analysis index; higher is better) | 17.3 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 43.4 (Artificial Analysis index; higher is better) | 21 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 14.4 (Artificial Analysis index; higher is better) | 1.8 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | Benchmark not available. | 1,138 Elo (#79 in Website (48.8% win rate)) |
At a Glance
Quick overview of what makes Gemma 4 31B and Kimi K2 Thinking unique.
Gemma 4 31B by Google understands both text and images, analyzes video, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 262.1K token context window. Very affordable at $0.14/M input and $0.40/M output tokens. Released April 2nd, 2026.Kimi K2 Thinking by MoonshotAI 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 $0.60/M input and $2.50/M output tokens. Released November 6th, 2025.Explore More Comparisons
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