Grok 3.
xAI's frontier model with built-in DeepSearch + real-time X integration.
No self-host path — closed weights.
Grok 3's weights aren't published. Use it via the access providers below.
Cheapest hosted endpoints.
| Provider | Access | $/M in | $/M out | |
|---|---|---|---|---|
| xAI API | api direct | $3.0 | $15.0 | Launch ↗ |
What it's best at.
Speed across providers.
Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.
| Provider | Tokens/sec | TTFT | Total |
|---|---|---|---|
| OpenRouter | 111.5 | 5086 ms | 6501 ms |
Frequently asked.
How do I run Grok 3?
Where can I access Grok 3?
How much does it cost to run Grok 3?
Is Grok 3 open-source or proprietary?
What it costs per month across providers.
Estimate your monthly bill for Grok 3 across every host that publishes per-token pricing. Slide your token volumes; the chart + table re-rank cheapest-first.
Cheapest provider on the left.
Total monthly cost — input + output tokens combined.
Bill breakdown.
What it's best at.
Scores normalised against benchmark ceilings (100 = perfect). Coloured by tier — coral 80+ frontier, lavender 65+ strong, sage 50+ solid, slate below.
Published scores.
| Benchmark | Score | Source |
|---|---|---|
| GPQA | 84.6 | official ↗ |
| MATH | 93.3 | official ↗ |
| MMLU-Pro | 79.9 | official ↗ |
| HumanEval | 88.4 | official ↗ |
Independent rankings.
About Grok 3.
Grok 3 is xAI's frontier model, released February 2025 from the Memphis Colossus supercluster (~200,000 H100s). Notable for native real-time grounding via X (Twitter) data and the built-in DeepSearch agent. Reasoning mode (Think) matches OpenAI o3-mini and Claude Opus on math and coding benchmarks. Available via the X subscription tiers (Premium+ for app access, separate SuperGrok for high-volume API access) and the xAI API for enterprise.