Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...
x-ai/grok-4.20Grok 4.20 is an API model from xAI, released on Mar 31, 2026, with a context window of 2,000,000 tokens, pricing of $1.25 per million input tokens and $2.5 per million output tokens. It accepts file, image, text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.015.
Specs are sourced from OpenRouter and were last checked on Nov 3, 2026. Always confirm current pricing and limits with the provider before production use.
Grok 4.20 supports a context window of 2,000,000 tokens.
Grok 4.20 is listed at $1.25 per million input tokens and $2.5 per million output tokens on OpenRouter.
Grok 4.20 was published on Mar 31, 2026.
Grok 4.20 accepts file, image, text input and produces text output.