Grok 4.20 Multi-Agent API Pricing
xAI · Mid-tier · Proprietary · released 2026-04. Prices in USD per 1 million tokens. Data snapshot: 2026-09-06.
- 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: 1470 (as of 2026-09-01)
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 |
Grok 4.20 Multi-Agent pricing by host
A host is a company that runs the model and sells it by the token — the lab that made it, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent provider. One model, several sellers, and often several prices. This model is sold by 1 host. The price quoted above is the one we publish so that models stay comparable; it is not necessarily the cheapest way to buy this model. List prices as published on 2026-09-06 via OpenRouter — negotiated rates, committed-use discounts and provisioned capacity are not shown.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| xAI (the price shown above) | $1.25 | $2.50 |
Models comparable to Grok 4.20 Multi-Agent
The nearest Mid-tier models on Arena ELO, so a substitution is compared on quality as well as price.
- Grok 4.5 (xAI) — $2.00 in / $6.00 out per 1M, Arena ELO 1470
- GLM 5.2 (Zhipu) — $0.97 in / $3.04 out per 1M, Arena ELO 1472
- Qwen3.7 Max (Alibaba) — $1.48 in / $4.42 out per 1M, Arena ELO 1474
- GPT-5.6 Terra (OpenAI) — $2.00 in / $12.00 out per 1M, Arena ELO 1466
Common questions about Grok 4.20 Multi-Agent pricing
- How much does Grok 4.20 Multi-Agent cost?
- Grok 4.20 Multi-Agent costs $1.25 per million input tokens and $2.50 per million output tokens on the API.
- Does Grok 4.20 Multi-Agent offer batch or cached pricing?
- Prompt-cache reads cost $0.20/M input tokens. No batch pricing is published.
- What would Grok 4.20 Multi-Agent cost per month?
- For a support-ticket workload (1,500 input + 500 output tokens per request) at 100K requests/month, Grok 4.20 Multi-Agent costs about $313 at list prices.
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.
Build the business case for Grok 4.20 Multi-Agent in the AI ROI Calculator: add your business value on top of these costs to get ROI, break-even and payback.
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