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x-aixAI: Grok 4.20 Beta
Grok 4.20 Beta is xAI'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 adherance, delivering consistently precise and truthful responses. Reasoning can be enabled/disabled using the `reasoning` `enabled` parameter in the API. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#controlling-reasoning-tokens)
x-ai/grok-4.20-beta
Context Size
2,000K
Input Price
12,300 Ks/M
Output Price
36,900 Ks/M
Architecture
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Supported Parameters
include_reasoninglogprobsmax_tokensreasoningresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_logprobstop_p
Details
TokenizerGrok
Provider Context2,000K tokens
ModeratedNo