grok-4.2-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.
Model facts
- Context window
- 2M tokens
- Maximum output
- 2M tokens
- Cheapest paid input
- $2 per 1M tokens
- Cheapest paid output
- $6 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, structured output, attachments, text, image.
Observed price history
- 2026-08-24: $1.8 input / $5.4 output per 1M tokens
- 2026-08-28: $2 input / $6 output per 1M tokens
API providers
- Requesty — model id grok-4.2-beta; $2 input / $6 output per 1M tokens; provider documentation