Grok Build 0.1 is SpaceXAI'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 agents, tool use, and multi-step development tasks. Currently in early access. Content policy rejections can still be charged: SpaceXAI may pass through a $0.05 moderation-failure fee, or a $0.055 usage-guidelines violation fee, depending on which rejection upstream returns.
Added May 20, 2026
Context Window
256.0K
Max Output
256.0K
Input Price (Auto)
$1.00/1M
Output Price (Auto)
$2.00/1M
Cache Read (Auto)
$0.20/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
39.8
Coding Index
51.5
Agentic Index
28.9
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
89.5%
Better than 95% of models compared
HLE
Humanity's Last Exam
36.0%
Better than 96% of models compared
AA-LCR
Long context reasoning evaluation
64.7%
Better than 83% of models compared
GDPval-AA
Economically valuable tasks
35.8%
CritPt
Research-level physics reasoning
9.1%
Coding
SciCode
Python programming for scientific computing
50.2%
Better than 95% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
51.5%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
93.1%
Last updated Jun 28, 2026
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Grok 4.20
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