Grok 4.20 (Reasoning)
Updated Sep 11, 2026
grok2.0M context2.0M max outputreleased Mar 9, 2026ReasoningTool calling
Official (xAI)
$2.5
output per 1M tokens
Providers
10
offering this model
Spread
4.8×
max / min output
Offers
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge.
| Provider | 1M input | 1M output | 1M cache read | 1M cache write | Context |
|---|---|---|---|---|---|
| Eden AI | Cheapest†$1.25 | Cheapest$2.5 | $0.2 | — | 1.0M |
| Vertex | †$1.25 | $2.5 | $0.2 | — | 2.0M |
| Impossibl | $1.25 | $2.5 | $0.2 | — | 1.0M |
| DevPass (LLM Gateway) | †$1.25 | $2.5 | $0.2 | — | 2.0M |
| LLM Gateway | †$1.25 | $2.5 | $0.2 | — | 2.0M |
| Vercel AI Gateway | $1.25 | $2.5 | $0.2 | — | 2.0M |
| Vercel AI Gateway | $1.25 | $2.5 | $0.2 | — | 2.0M |
| xAI | †$1.25 | $2.5 | $0.2 | — | 1.0M |
| Azure | $2 | $6 | — | — | 262k |
| Cloudflare AI Gateway | $2 | $6 | $0.2 | — | 2.0M |
| DevPass (LLM Gateway) | †$2 | $6 | $0.2 | — | 2.0M |
| LLM Gateway | †$2 | $6 | $0.2 | — | 2.0M |
| Ofox | $4 | $12 | $0.4 | — | 2.0M |