Grok 4.20
Last verified July 27, 2026 · xAI pricing ↗$1.25/1M input · $2.50/1M output · 1.0M context · xAI
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When to use Grok 4.20
Out of beta and repriced to $1.25/$2.50, matching Grok 4.3 across a 1M context. Reasoning and non-reasoning variants cost the same, so the choice is about latency rather than budget.
- 1M context window
- Same rate as Grok 4.3, reasoning or not
- Cached input at $0.20/1M, batch 50% off
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Alternatives to Grok 4.20
Pricing Details
xAIOut of beta and repriced: xAI's pricing table lists grok-4.20-0309 (reasoning and non-reasoning) at $1.25/$2.50 with a 1M context, not the $2/$6 and 2M this entry previously carried. Cached input: $0.20/1M. Above 200K prompt tokens the rate doubles to $2.50/$5.00 (cached $0.40). The grok-4.20-multi-agent-0309 variant is priced identically. Batch: 50% off. Estimated tokens (different tokenizer).
Input / 1M tokens
$1.25
Output / 1M tokens
$2.5
Context Window
1.0M
Max Output
16K
Price History
Launched at current price on 2026-03-24. No price changes recorded.
Frequently Asked Questions
Common questions about Grok 4.20 pricing and usage