Grok 4.20 Multi-Agent API Pricing
xAI · Mid-tier · Proprietary · released 2026-04. Prices in USD per 1 million tokens. Data snapshot: 2026-08-14.
- Input: $1.25 per 1M tokens
- Output: $2.50 per 1M tokens
- Batch API (input/output): not published
- Prompt-cache read: $0.20
- Context window: 2M
- Arena ELO: 1450 (as of 2026-08-13)
Cost per request by business use case
List price vs optimized (prompt caching on the cached input share, batch API for async workloads — only where the provider publishes those rates).
| Use case | Tokens (in/out) | Cost/req (list) | Cost/req (optimized) | Monthly @100K req |
|---|---|---|---|---|
| Support Ticket | 1,500 / 500 | $0.0031 | $0.0022 | $218 |
| Knowledge Q&A | 2,000 / 800 | $0.0045 | $0.0030 | $303 |
| Meeting Summary | 10,000 / 1,200 | $0.015 | $0.014 | $1.4K |
| Marketing Content | 2,500 / 1,800 | $0.0076 | $0.0071 | $710 |
| Coding Task | 3,000 / 2,000 | $0.0088 | $0.0072 | $718 |
| Invoice Processing | 1,500 / 600 | $0.0034 | $0.0029 | $290 |
| Call Summary | 2,000 / 700 | $0.0043 | $0.0040 | $404 |
| Agent Workflow | 6,000 / 3,000 | $0.015 | $0.011 | $1.1K |
These are list prices — real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.