xAIGrok 3Apr 9, 2025
xAI: Grok 3 Mini Beta
Grok 3 Mini is a lightweight, smaller thinking model. Unlike traditional models that generate answers immediately, Grok 3 Mini thinks before responding. It’s ideal for reasoning-heavy tasks that don’t demand extensive domain knowledge, and shines in math-specific and quantitative use cases, such as solving challenging puzzles or math problems. Transparent "thinking" traces accessible. Defaults to low reasoning, can boost with setting `reasoning: { effort: "high" }` Note: That there are two xAI endpoints for this model. By default when using this model we will always route you to the base endpoint. If you want the fast endpoint you can add `provider: { sort: throughput}`, to sort by throughput instead.
Context Window
131K
tokens
Max Output
—
tokens
Released
Apr 9, 2025
Arena Rank
—
Output Speed
145
tokens/sec
Time to First Token
520ms
TTFT
Capabilities
👁Vision
🧠Reasoning
🔧Tool Calling
⚡Prompt Caching
🖥Computer Use
🎨Image Generation
Supported Parameters
Include Reasoning
Show reasoning tokens
Log Probs
Token probabilities
Max Tokens
Output length limit
Reasoning
Extended thinking
Response Format
JSON mode / structured output
Seed
Deterministic outputs
Stop Sequences
Custom stop tokens
Temperature
Controls randomness
Tool Choice
Control tool usage
Tool Calling
Function calling support
top_logprobs
Top P
Nucleus sampling
Pricing Comparison
| Router | Input / 1M | Output / 1M | Cached Input / 1M |
|---|---|---|---|
| OpenRouter | $0.30 | $0.50 | $0.07 |
Benchmarks
Artificial Analysis
Intelligence IndexArtificial Analysis
64/100Coding IndexArtificial Analysis
58/100Math IndexArtificial Analysis
78/100MMLU-PROArtificial Analysis
0.788/1GPQA DiamondArtificial Analysis
0.685/1MATH-500Artificial Analysis
0.912/1AIME 2024Artificial Analysis
0.55/1Humanity's Last ExamArtificial Analysis
0.068/1LiveCodeBenchArtificial Analysis
0.578/1SciCodeArtificial Analysis
0.318/1Model IDs
OpenRouter
x-ai/grok-3-mini-betaTags
reasoningtool-calling