xAI · Released Apr 16, 2026Grok Build 0.1
Fast Grok coding model tuned for agentic engineering and iterative edits.
- Capability
- —No ECI score yet
- Input
- $1.00per 1M tokens
- Output
- $2.00per 1M tokens
- Context
- 256K256K max output
What it costs
- Input
- $1.00per million tokens
- Output
- $2.00per million tokens
- Cached input
- $0.20per million tokens
- Over 200K tokens
- $2.00 / $4.00input / output per million
- Blended (3:1)
- $1.25pricier than 61% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $3.00 |
| Team assistant25M input + 5M output tokens | $35.00 |
| Production app250M input + 50M output tokens | $350.00 |
Official xAI API price, as listed on models.dev.
Independent benchmarks
Epoch AI has not published a Capabilities Index score for Grok Build 0.1 yet.
The details
- Lab
- xAI
- Released
- Apr 16, 2026
- Context window
- 256,000 tokens
- Max output
- 256,000 tokens
- Inputs
- Text, Images, PDFs
- Output
- Text
- Reasoning
- Always on
- Tool calling
- Yes
- Structured output
- Yes
- Weights
- Proprietary
- API model ID
grok-build-0.1on xAI- Availability
- 19 API providerslisted on models.dev
More from xAI
About Grok Build 0.1
How much does Grok Build 0.1 cost?
Grok Build 0.1 costs $1.00 input / $2.00 output per million tokens (official xAI API price). Cached input is $0.20 per million tokens. Requests over 200K tokens are billed at $2.00 input / $4.00 output. At a 3:1 input-to-output mix that is $1.25 per million tokens, more expensive than 61% of the 360 priced models we track.
What is the context window of Grok Build 0.1?
Grok Build 0.1 accepts up to 256,000 tokens per request and can write up to 256,000 tokens in one response.
How good is Grok Build 0.1?
Epoch AI has not published a Capabilities Index score for Grok Build 0.1 yet.
Is Grok Build 0.1 open source?
No. Grok Build 0.1 is proprietary; you use it through xAI’s API or partner platforms.
What inputs does Grok Build 0.1 support?
Grok Build 0.1 accepts text, images and PDFs and replies in text. It is a reasoning model, supports tool calling and can return structured JSON output.
When was Grok Build 0.1 released?
xAI released Grok Build 0.1 on Apr 16, 2026.
What are the best alternatives to Grok Build 0.1?
The closest current models from other labs on capability, price and release date are MiniMax-M2.7-highspeed (MiniMax, $0.60 / $2.40), LongCat-2.0 (Meituan (LongCat), $0.75 / $2.95), Qwen3.5 122B-A10B (Alibaba (Qwen), $0.40 / $3.20) and DeepSeek V4 Pro (DeepSeek, $1.32 / $3.00).