2026-03-12 CometAPI Adds Grok 4.20 Beta Series!

[tensornull]

grok-4.20-multi-agent-beta-0309, grok-4.20-beta-0309-reasoning, grok-4.20-beta-0309-non-reasoning

grok-4.20-beta series: Grok 4.20 Beta is X.ai's newest flagship model with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherence, delivering consistently precise and truthful responses.

grok-4.20-multi-agent-beta-0309:

This model supports OpenAI response format calls. For details, refer to: https://apidoc.cometapi.com/responses

grok-4.20-beta-0309-reasoning, grok-4.20-beta-0309-non-reasoning:

These models follow the standard OpenAI chat format call and response format calls. For details, refer to:

https://apidoc.cometapi.com/chat

https://apidoc.cometapi.com/responses