Grok 4.20 Multi-Agent with Jev
Grok 4.20 Multi-Agent is a model from SpaceXAI, released 2026-03-31. It costs $1.25 per million input tokens and $2.50 per million output tokens, reads up to 2M tokens of context, and writes up to 1,800,000 tokens in one reply. Through llm11, set model to x-ai/grok-4.20-multi-agent.
- Input price
- $1.25 / 1M
- Output price
- $2.50 / 1M
- Context window
- 2M tokens
- Max output
- 1.8M tokens
- Cached input
- $0.200 / 1M
- Released
- 2026-03-31
- Accepts
- text, image, file
Read from the provider's prompt cache
Read from the live catalogue and refreshed daily. At blended list price, 30% of the 332 priced models we can call cost more.
Using Grok 4.20 Multi-Agent with Jev
Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. Grok 4.20 Multi-Agent does the answering when Jev sends it work, or when you name it yourself. Grok 4.20 Multi-Agent falls in the llm11-balanced band, and the labs and limits it meets make it eligible for that pack. Packs keep a spread of eight models per band, and it is not one of the eight today, so it is only picked when you name it in a custom pool.
Jev is new, so we have not published results for Grok 4.20 Multi-Agent with and without it, and this page does not invent any. Every response comes with a receipt that names the model that answered and what it cost against your most expensive model, so you can measure the pairing on your own traffic.
What a request costs
List price arithmetic, the same sum a receipt does. llm11 adds nothing per request; the only fee is on buying credits.
| Request | Tokens in / out | One | A thousand |
|---|---|---|---|
| Short chat turn | 500 / 200 | $0.00113 | $1.13 |
| Question over retrieved documents | 4,000 / 500 | $0.00625 | $6.25 |
| Long document summary | 30,000 / 1,000 | $0.040 | $40.00 |
Cheaper models to try
The catalogue has no benchmark score for Grok 4.20 Multi-Agent, so this is a price ordering. It does not claim these answer as well.
| Model | Input / 1M | Output / 1M | Context | Released |
|---|---|---|---|---|
| Qwen Qwen3 Max ThinkingRetires 2026-10-09 | $0.780 | $3.90 | 262K | |
| Qwen Qwen3 MaxRetires 2026-10-09 | $0.780 | $3.90 | 262K | |
| Google Gemini 3.8 Flash | $0.750 | $3.75 | 1.05M | |
| Google Gemini 3.7 Flash | $0.750 | $3.75 | 1.05M |
Call it
Same OpenAI request shape. Naming the model pins it, so nothing is routed, and the answer is still checked.
python
from openai import OpenAI
client = OpenAI(base_url="https://www.llm11.com/v1", api_key="llm11_live_...")
res = client.chat.completions.create(
model="x-ai/grok-4.20-multi-agent",
messages=[{"role": "user", "content": "Hello"}],
)More from SpaceXAI
Questions
- What is Grok 4.20 Multi-Agent with Jev?
- Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. Grok 4.20 Multi-Agent does the answering when Jev sends it work, or when you name it yourself. Grok 4.20 Multi-Agent falls in the llm11-balanced band, and the labs and limits it meets make it eligible for that pack. Packs keep a spread of eight models per band, and it is not one of the eight today, so it is only picked when you name it in a custom pool. Routing decisions are made by Jev, TypeSafe AI's System One model.
- Is Grok 4.20 Multi-Agent a System One model?
- No. Grok 4.20 Multi-Agent answers requests. The System One model is Jev, which decides which model answers each one, so the two do different jobs and llm11 uses both.
- How much does Grok 4.20 Multi-Agent cost?
- $1.25 per million input tokens and $2.50 per million output tokens. A 4,000 token prompt with a 500 token answer costs about $0.00625, so a thousand of them is about $6.25. llm11 passes provider list price through and charges 5% when you buy credits.
- What is the Grok 4.20 Multi-Agent context window?
- 2,000,000 tokens, with up to 1,800,000 tokens in a single reply.
- Does Grok 4.20 Multi-Agent support tool calling and structured output?
- The catalogue lists structured output and reasoning controls, but it does not list tool calling.
- Can I use Grok 4.20 Multi-Agent through llm11?
- Yes. Set model to x-ai/grok-4.20-multi-agent on the OpenAI-compatible endpoint and the request goes to it directly, with verification still running.
- Does Jev route to Grok 4.20 Multi-Agent?
- Routing decisions are made by Jev, TypeSafe AI's System One model. Grok 4.20 Multi-Agent falls in the llm11-balanced band, and the labs and limits it meets make it eligible for that pack. Packs keep a spread of eight models per band, and it is not one of the eight today, so it is only picked when you name it in a custom pool.
- What is a cheaper alternative to Grok 4.20 Multi-Agent?
- Nearest in price and below it: Qwen Qwen3 Max Thinking at $0.780 in and $3.90 out, Qwen Qwen3 Max at $0.780 in and $3.90 out and Google Gemini 3.8 Flash at $0.750 in and $3.75 out. The catalogue has no benchmark score for Grok 4.20 Multi-Agent, so this is a price ordering. It does not claim these answer as well.