Gemma 4 31B vs Grok 4.3 (Comparative Analysis)
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Comparative Analysis: Gemma 4 31B vs. Grok 4.3
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Overview
Gemma 4 31B was released 28 days before Grok 4.3.
 Gemma 4 31B |  Grok 4.3 | |
|---|---|---|
Model Provider The organization behind this AI's development | Google | XAI |
Input Context Window Maximum input tokens this model can process at once | 262.1K tokens | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | 262.1K tokens | Not specified tokens |
Release Date When this model first became publicly available | April 2, 2026 3 months ago April 2nd, 2026 | April 30, 2026 2 months ago April 30th, 2026 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Gemma 4 31B | Grok 4.3 | |
|---|---|---|
Input Types Supported input formats | 🖼️Image📝Text🎬Video | 📝Text🖼️Image📁File |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Enabled by defaultEffort: High, Medium, Low, NoneDefault: Low |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Gemma | Grok |
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 → | Proprietary |
Pricing
Gemma 4 31B is roughly 0.1x less expensive compared to Grok 4.3 for input tokens and roughly 0.2x less expensive for output tokens.
| Gemma 4 31B | Grok 4.3 | |
|---|---|---|
Short Context Pricing Base rates before a long-context threshold applies | ||
Input Token Cost Cost per million input tokens | $0.14 per million tokens | $1.25 per million tokens |
Output Token Cost Cost per million output tokens | $0.40 per million tokens | $2.50 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.005 per search |
Cache Read Cost Cost to reuse cached input tokens | Not specified | $0.20 per million tokens |
Long Context Pricing Rates for prompts with 200,000 or more tokens | ||
Input Token Cost Long-context input cost per million tokens | Not specified | $2.50 per million tokens |
Output Token Cost Long-context output cost per million tokens | Not specified | $5.00 per million tokens |
Cache Read Cost Long-context cache read cost per million tokens | Not specified | $0.40 per million tokens |
Benchmarks
Compare relevant benchmarks between Gemma 4 31B and Grok 4.3.
| Gemma 4 31B | Grok 4.3 | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 29.4 (Artificial Analysis index; higher is better) | 37.6 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 43.4 (Artificial Analysis index; higher is better) | 42.2 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 14.4 (Artificial Analysis index; higher is better) | 24.1 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | Benchmark not available. | 1,235 Elo (#38 in Game Dev (49.5% win rate)) |
At a Glance
Quick overview of what makes Gemma 4 31B and Grok 4.3 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.Grok 4.3 by XAI understands both text and images, 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 $1.25/M input and $2.50/M output tokens. Released April 30th, 2026.Explore More Comparisons
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