Grok 3 MinivsGrok-2 Mini
xAI vs xAI — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Grok 3 Mini | Grok-2 Mini |
|---|---|---|
| Provider | ||
| Arena Rank | #16 | #16 |
| Context Window | 128K | 128K |
| Input Pricing | $0.30/1M tokens | $0.30/1M tokens |
| Output Pricing | $0.50/1M tokens | $1.50/1M tokens |
| Parameters | Undisclosed | Undisclosed |
| Open Source | No | No |
| Best For | Lightweight reasoning, fast responses, chat | Fast responses, chat, lightweight tasks |
| Release Date | Apr 12, 2025 | Aug 13, 2024 |
Grok 3 Mini
Grok 3 Mini, developed by xAI, is a compact reasoning model with built-in chain-of-thought capabilities and real-time access to X (Twitter) data. The model combines the speed of smaller architectures with the accuracy improvements of deliberative reasoning, using internal thinking tokens to improve performance on complex queries. Grok 3 Mini maintains the distinctive personality of the Grok model family while offering faster response times and reduced pricing compared to the full Grok 3. It handles everyday coding, analysis, and conversational tasks effectively, with the added advantage of current information from the X platform. The model targets developers and consumers who need capable AI with real-time knowledge at accessible pricing. It serves as the entry point to xAI's model ecosystem, competing with GPT-4o Mini and Claude Haiku for cost-sensitive applications.
View xAI profile →Grok-2 Mini
Grok-2 Mini, developed by xAI, is a compact and fast variant of Grok-2 with a 128K token context window. The model maintains Grok's real-time X (Twitter) data access and distinctive conversational style while delivering faster response times at reduced cost. It handles chat, content generation, and lightweight reasoning tasks effectively. Priced at $0.30 per million input tokens and $1.50 per million output tokens, Grok-2 Mini targets high-volume applications where current information and fast responses outweigh maximum analytical depth. The model supports function calling and structured outputs for production integrations. Grok-2 Mini ranks #16 on the Chatbot Arena leaderboard, demonstrating competitive performance for a compact model and providing a cost-effective entry point to xAI's model ecosystem.
View xAI profile →When to use Grok 3 Mini
- +Your use case involves lightweight reasoning, fast responses, chat
When to use Grok-2 Mini
- +Your use case involves fast responses, chat, lightweight tasks
Cost Analysis
Both models have similar pricing. For a typical enterprise workload processing 100M tokens per month:
Grok 3 Mini monthly cost
$40
100M tokens/mo (50/50 in/out)
Grok-2 Mini monthly cost
$90
100M tokens/mo (50/50 in/out)
The Verdict
Grok 3 Mini wins our head-to-head comparison with 1 out of 5 category wins. It's the stronger choice for lightweight reasoning, fast responses, chat, though Grok-2 Mini holds an edge in fast responses, chat, lightweight tasks.
Last compared: April 2026 · Data sourced from public benchmarks and official pricing pages