xAI
Grok 4.20
Released 2026-03-31 · Knowledge up to 2025-09-01
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...
You send / 1M
$1.25
tokens in
It replies / 1M
$2.50
tokens out
Memory
2M
tokens it can read at once
Typical request
$0.0029
1,000 words in, 400 out
Data privacy
No training or retention: Yes. At least one provider serves it with zero data retention.
Based on OpenRouter and Vercel AI Gateway data. Confirm terms with the provider before sending sensitive data.
What it can do
- Reads: text, image, file
- Writes: text
- Reasoning: Yes
- Tool calling: Yes
- Longest reply: 1.8M tokens
- Repeated text is billed at $0.200 per 1M (prompt caching)
- Intelligence score: 25.7 / 100 (Artificial Analysis)
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Appears in
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