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xAI: Grok Build 0.1.

multimodal closed 256K ctx
Cheapest input
$1.0/M
on xAI
Cheapest output
$2.0/M
on xAI
Fastest
124 tok/s
on OpenRouter
Hosted equiv.
~$0.72/hr
@ 100 tok/s on xAI

Grok Build 0.1 is xAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...

Hosted API only

No self-host path — closed weights.

xAI: Grok Build 0.1's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
xAI api direct $1.0 $2.0 Launch ↗
OpenRouter api aggregator $1.0 $2.0 Launch ↗
Performance

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 123.9 24527 ms 25019 ms
FAQ

Frequently asked.

How do I run xAI: Grok Build 0.1?
xAI: Grok Build 0.1 is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access xAI: Grok Build 0.1?
xAI: Grok Build 0.1 is available via xAI, OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run xAI: Grok Build 0.1?
API pricing starts at $1.0/M input tokens and $2.0/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is xAI: Grok Build 0.1 open-source or proprietary?
xAI: Grok Build 0.1 is a proprietary model from xAI. Access is API-only — there are no public weights to download.