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Grok Build 0.1

Beta

xAI · Released 2026-05 · xai/grok-build-0.1

Overview

Model from xAI's Grok family with fast inference, large context and strong performance on real-time reasoning tasks. Grok Build 0.1 supports up to 256K tokens of context. Served through the FirmLink unified API with OpenAI-compatible endpoints.

Function CallingJSON ModeStreamingText

API example

Fully OpenAI-compatible — just change the model field.

curl https://api.firmlinktech.com/v1/chat/completions \
  -H "Authorization: Bearer $FIRMLINK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "xai/grok-build-0.1",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Pricing

Input$1.00 /1M
Output$2.00 /1M
Context window256K
Max output33K
Grok Build 0.1 is provided by xAI and served through the FirmLink gateway. Availability and limits follow the provider's terms.