Grok Build 0.1
BetaxAI · 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!"}]
}'Related models
xAI
Grok 4.6
Function CallingJSON ModeStreamingVision
500K context
$2.00 / $6.00per 1M tok in / out
View details
xAI
Grok 4.5
Function CallingJSON ModeStreamingVision
500K context
$2.00 / $6.00per 1M tok in / out
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xAI
Grok 4.3
Function CallingJSON ModeStreamingVision
1M context
$1.25 / $2.50per 1M tok in / out
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xAI
Grok 4.20 Multi-Agent
Function CallingJSON ModeStreamingVision
2M context
$1.25 / $2.50per 1M tok in / out
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Grok Build 0.1 is provided by xAI and served through the FirmLink gateway. Availability and limits follow the provider's terms.