Grok
SpaceXAI's models, strong on long-running engineering tasks.
Grok is SpaceXAI's model family, sold through its own API rather than published as weights. The recent versions are pitched at coding and agentic work — long software-engineering runs where the model checks its own output — and take text, images and files with a 500K-token context. Closed weights and paid only, so treat it as a frontier option you rent, not one you host. The Grok chat app is listed separately under Chats.
At a glance — Grok Build 0.1
- Cost
- $1.00 in · $2.00 out per 1M tokensMid-range
- Memory
- 256K tokens — about 400 pages
- Reads
- Text · Images · Files
- Can do
- Use tools (agents)
- Structured output
- Thinking mode
- Good at
- Coding: better than 54%
- Reliability
- 99.29% uptime, last 24h
- Released
- May 20, 2026
Advanced details
- API model ID
x-ai/grok-build-0.1- Max output
- 230K tokens
- Cached input
- $0.20 per 1M
- Prompts over 200K
- $2.00 in · $4.00 out per 1M
- Tokenizer
- Grok
- Coding index
- 51.5
Providers
The same model, hosted by different companies. OpenRouter picks one per request and falls back to the next if it fails.
| Provider | Input /1M | Output /1M | Cached /1M | Max output | Uptime 24h |
|---|---|---|---|---|---|
| xAI | $1.00 | $2.00 | $0.20 | 230K | 99.29% |
| xAI · zdr | $1.00 | $2.00 | $0.20 | 230K | 98.57% |
| xAI · zdr | $2.00 | $4.00 | $0.40 | 230K | — |
| xAI · priority | $2.00 | $4.00 | $0.40 | 230K | — |
Supported parameters
- include_reasoning
- logprobs
- max_tokens
- reasoning
- response_format
- seed
- structured_outputs
- temperature
- tool_choice
- tools
- top_logprobs
- top_p
Live from OpenRouter, refreshed hourly. Scores from Artificial Analysis.
Key info
- Pricing
- Paid
- Category
- Models
- Best for
- Intermediate
- Made by
- SpaceXAI
- Weights
- Closed, API only
- Good for
- Long software-engineering tasks