grok-4.20-multi-agent-0309 pricing
grok-4.20-multi-agent-0309 from xAI costs $1.25 per 1M input tokens and $2.50 per 1M output tokens. Cached input is $0.200 per 1M. Context window 1,000,000 tokens.
API id grok-4.20-multi-agent-0309 · xAI · source · updated 2026-09-25 · general-purpose
$1.25
Input / 1M tokens
$2.50
Output / 1M tokens
$0.200
Cached input / 1M
1M
Context window
Long-context pricing
Prompts over 128K tokens are billed at $2.50 per 1M input and $5.00 per 1M output — roughly 2.0× the standard input rate. Budget for this if you send large documents.
grok-4.20-multi-agent-0309 specifications
- Provider
- xAI
- API id
grok-4.20-multi-agent-0309- Model type
- general-purpose
- Context window
- 1M tokens
- Max output
- not published
- Currency
- USD
- Price source
- First-party
- Last checked
- 2026-09-25
Tags
- flagship
- reasoning
- vision
What grok-4.20-multi-agent-0309 costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0025 |
| Document summary | 50,000 | 2,000 | $0.07 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $1.75 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Common questions
- How much does grok-4.20-multi-agent-0309 cost per 1M tokens?
- grok-4.20-multi-agent-0309 costs $1.25 per 1M input tokens and $2.50 per 1M output tokens on the standard tier. Cached input is $0.200 per 1M.
- What is grok-4.20-multi-agent-0309's context window?
- grok-4.20-multi-agent-0309 accepts up to 1,000,000 tokens in a single request.
- Is there a cheaper Grok model than grok-4.20-multi-agent-0309?
- Yes. grok-build-0.1 is $1.00 per 1M input tokens versus $1.25 for grok-4.20-multi-agent-0309, with a 256,000 token context window.
- Where does this grok-4.20-multi-agent-0309 price come from?
- Directly from xAI's published pricing page, re-read every day and normalized to USD per 1,000,000 tokens.