Grok 4.20
xAI
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...
What is 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...
Specifications
- Developer: xAI
- Context window: 2M tokens
- Max output: — tokens
- Input modalities: text, image, file
- Output modalities: text
- Input price: $1.25 per 1M tokens
- Output price: $2.50 per 1M tokens
- Knowledge cutoff: 2025-09-01
- Supported parameters: include_reasoning, logprobs, max_tokens, reasoning, response_format, seed, structured_outputs, temperature, tool_choice, tools, top_logprobs, top_p
Use Grok 4.20 with PromptLayer
PromptLayer lets teams manage, evaluate, and observe prompts that run on Grok 4.20 alongside every other model in their stack. Version prompts, run evals across models, and ship safe rollouts from the same dashboard.
Ready to try it yourself? Sign up for PromptLayer and start managing your prompts in minutes.