// model_detail
legacy frontier
Grok 4
by xAI
Previous-generation Grok flagship. 256K context. Superseded by Grok 4.20.
Context window 256K 256K tokens
Max output 32K 32K tokens
Pricing /1M tok $3.00 in / $15.00 out per 1M tokens (API)
Released Jul 1, 2025
// specifications
Specs & capabilities
// data_confidence
Data notes
⚠️ Knowledge cutoff not listed
// notes
Additional notes
Previous flagship, 87.7% GPQA
// more_from_xai
More xAI models
Grok 4.20 active frontier
xAI's newest flagship with industry-leading speed and agentic tool calling. 2M context, lowest hallucination rate.
Grok 4.20 Multi-Agent active frontier
Variant of Grok 4.20 for collaborative agent-based workflows. Multiple agents operate in parallel.
Grok 4.1 Fast active fast
Fast non-reasoning variant. 2M context. Cost leader among frontier-class providers.
Grok 4 Fast legacy fast
Previous-generation fast Grok. 2M context. Superseded by Grok 4.1 Fast.
Grok Code Fast 1 active coding
xAI's coding-focused model. 256K context, optimized for code generation.
Grok 3 Mini legacy fast
Smaller Grok 3 variant with reasoning. 131K context. Cost-efficient.
// external_links