xAI
Grok 4.20 Multi-Agent
Grok model for agentic tool use, reasoning, coding, and live assistance
Model facts
- Context window
- 2M tokens
- Maximum output
- 2M tokens
- Cheapest paid input
- $1.25 per 1M tokens
- Cheapest paid output
- $2.5 per 1M tokens
- Open weights
- no
- Providers
- 6
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image, pdf.
Observed price history
- 2026-08-24: $1.25 input / $2.5 output per 1M tokens
API providers
- OpenRouter — model id x-ai/grok-4.20-multi-agent; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id spacexai/grok-4.20-multi-agent; $1.25 input / $2.5 output per 1M tokens; provider documentation
- xAI — model id grok-4.20-multi-agent-0309; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Venice AI — model id grok-4-20-multi-agent; $1.42 input / $2.83 output per 1M tokens; provider documentation
- NanoGPT — model id x-ai/grok-4.20-multi-agent; $2 input / $6 output per 1M tokens; provider documentation
- Poe — model id xai/grok-4.20-multi-agent; $2 input / $6 output per 1M tokens; provider documentation