Grok 4.20
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...
The figures
- Made by
- SpaceXAI
- Model ID
- x-ai/grok-4.20
- Input
- $1.25 per million tokens
- Output
- $2.5 per million tokens
- Context window
- 2M tokens
- Longest answer
- 1.8M tokens
- Takes in
- text, image, file
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- Yes
- Open weights
- No
- Released
- 31 Mar 2026
Read on 3 Oct 2026.