Grok Build 0.1
x-ai/grok-build-0.1-20260520
xAI: Grok Build 0.1, released by x‑ai on 2026‑05‑20, processes text, image, and file inputs and generates text output. It supports tool usage and reasoning, operates with a context window of 256 000 tokens, and is priced at $1 per million input tokens and $2 per million output tokens. The model is not open‑weight.
- tool use
- structured outputs
- reasoning
At a glance
providerx-ai
releasedMay 20, 2026
context256K
input / M$1
Specifications
What the API gives you
- Context window
- 256K tokens
- Max output
- —
- Input price
- $1 / 1M tokens
- Output price
- $2 / 1M tokens
- Cache read
- $0.20 / 1M tokens
- Modalities
- text, image, file → text
- Knowledge cutoff
- —
- Released
- May 20, 2026
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.
Measured evidence
Public benchmark record
- LMArena Agent
- -8.22026-07-13
- LMArena Agent
- -7.62026-07-20
LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.