Grok 4.20 (Reasoning)
Reasoning Grok for document-heavy analysis and long-horizon tool use
Cheapest input
$1.25
$/MTok · models.dev
Cheapest output
$2.50
$/MTok
Context
1M
tokens
Offers
5
2 sources
Offers
Same model, different listings. First-party, router, and aggregator rows stay separate so you can see the spread instead of a single blended number.
| Source | Provider | Input | Output | Cache read | Context |
|---|---|---|---|---|---|
| models.devcheapestxai/grok-4.20-0309-reasoning | Impossibl | $1.25 | $2.50 | $0.2 | 1M |
| models.devxai/grok-4.20-0309-reasoning | Merge Gateway | $1.25 | $2.50 | $0.2 | 1M |
| models.devgrok-4.20-0309-reasoning | xAI | $1.25 | $2.50 | $0.2 | 1M |
| LiteLLMgrok-4.20-0309-reasoning | — | $2 | $6 | $0.2 | — |
| LiteLLMxai/grok-4.20-0309-reasoning | — | $2 | $6 | $0.2 | — |
Capabilities
- Reasoning
- Tool calling
- Structured output
- Attachments
- In: text
- In: image
- In: pdf
- Out: text
Released: 2026-03-09Family: grok