SpaceXAI
Grok 4.20 Multi-Agent API pricing.
Grok 4.20 Multi-Agent is SpaceXAI’s model on the API market, released 31 Mar 2026. Prices are per million tokens in USD, as last read from the price list.
$1.25Input / 1M
$2.50Output / 1M
2MContext
1.8MMax output
Specification
USD per million tokens- Provider
- SpaceXAI
- Model id
x-ai/grok-4.20-multi-agent- Input
- $1.25
- Output
- $2.50
- Cached input
- $0.20
- Context window
- 2M tokens
- Maximum output
- 1.8M tokens
- Takes
- text, image, file
- Returns
- text
- Tool use
- Not reported
- Reasoning
- Yes
- Released
- 31 Mar 2026
- First tracked
- 17 Sept 2026
At $1.25 per million input tokens, Grok 4.20 Multi-Agent is dearer than 241 of the 340 models on the price list.
Price changes
Tracked since 17 Sept 2026No price change has been recorded since tracking began on 17 Sept 2026. Prices are checked every six hours, and any change is listed here and on model changes.
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More from SpaceXAI
Cheapest input first- Grok Build 0.1$1.00 in · $2.00 out
- Grok 4.3$1.25 in · $2.50 out
- Grok 4.20$1.25 in · $2.50 out
- Grok 4.7$2.00 in · $6.00 out
- Grok 4.6$2.00 in · $6.00 out
- Grok 4.5$2.00 in · $6.00 out
Prices and specifications come from OpenRouter’s catalogue, last read 2 Nov 2026. A provider’s own price may differ; how this is collected.