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x-ai/grok-4-20
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Grok 4.20
Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...
3/31/2026
2,000,000 tokens
Specifications
Modalities
Input
text
image
file
Output
text
Supported Parameters
include_reasoning
logprobs
max_tokens
reasoning
response_format
seed
structured_outputs
temperature
tool_choice
tools
top_logprobs
top_p