Grok 3: Pricing, Context, and Benchmarks
Grok 3 is xAI's Grok 3 model released on 2025-02-17. It runs on a 1.0M-token context window, priced at $3.00/M input and $15.00/M output. xAI's frontier model. 1M context plus access to real-time X data. Pricing tracks GPT-4o tier.
Specifications
| Provider | xAI |
|---|---|
| Family | Grok 3 |
| Released | 2025-02-17 |
| Status | active |
| Context window | 1.0M tokens |
| Max output | 16K tokens |
| Modalities | text image |
| Capabilities | function calling json mode vision streaming realtime web |
| Tokenizer | grok |
| API endpoint | https://api.x.ai/v1/chat/completions |
| Documentation | Official docs ↗ |
| Last updated | 2026-05-29 |
Benchmark scores
| Benchmark | Category | Score | Measured | Source |
|---|---|---|---|---|
| AIME 2025 | math | 93.3 | 2025-02-17 | ↗ |
| GPQA Diamond | reasoning | 84.6 | 2025-02-17 | ↗ |
Scores reflect single measurements on the date shown. Reproducibility varies; consult the linked source for methodology. Use the comparison tool for side-by-side analysis.
What this model is good for
Based on benchmark scores and capability fit, Grok 3 ranks well for:
- Math & STEM Reasoning — rank #2. Strong AIME score; cheaper than reasoning-only models.
Cost calculator
For 1,000 tokens of input and 1,000 tokens of output per call, this model costs $0.0180 per call. For typical usage:
| Workload | Tokens / call (in/out) | $/call | $/1K calls | $/1M calls |
|---|---|---|---|---|
| Short Q&A | 200 / 100 | $0.002100 | $2.10 | $2,100 |
| Standard chat | 1K / 500 | $0.010500 | $10.50 | $10,500 |
| RAG with retrieval | 4K / 500 | $0.019500 | $19.50 | $19,500 |
| Long doc summary | 20K / 1K | $0.075000 | $75.00 | $75,000 |
| Long context (100K input) | 100K / 2K | $0.322500 | $322.50 | $322,500 |
For more precise estimates including caching discounts, use the LLM API Cost Calculator.
Common comparisons
- Grok 3 vs Claude Sonnet 4.6 Side-by-side specs, pricing, and benchmarks
- Grok 3 vs Claude 3.5 Sonnet Side-by-side specs, pricing, and benchmarks
- Grok 3 vs GPT-4o Side-by-side specs, pricing, and benchmarks
- Grok 3 vs Llama 3.1 405B Side-by-side specs, pricing, and benchmarks
API setup
curl https://api.x.ai/v1/chat/completions \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "grok-3", "messages": [{"role": "user", "content": "Hello"}]}'See the official documentation for the full request/response schema. For pre-flight token counting before paying, use the appropriate token counter.