SpaceXAI: Grok 4.20
x-ai/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...
Modalities
TextImageFile
In / out price
₩2,194 / ₩4,388
1M
Context
2M
Released
Apr 1, 2026
Pricing
Prices are quoted in Korean won. Changes to the exchange rate or margin show up immediately.
| Input (prompt) | ₩2,194 / 1M |
| Output (completion) | ₩4,388 / 1M |
| Cache read | ₩351 / 1M |
| Cache write | — |
1,000 input tokens plus 1,000 output tokens costs about ₩6.58.