Inference
EN
xAI

Grok 4.20 Multi-agent

Grok 4.20 Multi-agent is a reasoning model from xAI in the Grok 4.20 family. It has no scored result.

  • Closed weights
  • Reasoning
  • Input: text · image · file
  • Released 2026-03
No resultsEnough results for an index.
IndexAll categories, out of 100.UnrankedMedian 51.0
CoverageIndex weight that has results.0%
SpeedOutput tokens per second.312/sMedian 67/s
First tokenSeconds to the first output token.32.5 sMedian 1.3 s
Input / 1MUS dollars per 1M input tokens.$1.25Median $0.60
Output / 1MUS dollars per 1M output tokens.$2.50Median $2.55
ContextMaximum tokens in one request.2MMedian 262K
EloLMArena rating and rank.1451±4 #53Median 1422

Details

From OpenRouter
API IDThe model ID on OpenRouter.
x-ai/grok-4.20-multi-agent
Max outputMaximum output tokens per request.
1.8M
Knowledge cutoffLast date of training data.
1 Sep 2025
ToolsTool calls on OpenRouter.
No
JSON outputOutput follows a given JSON schema.
Yes
Cache read / 1MUS dollars per 1M cached tokens.
$0.20
WeightsLink to the published weights.
—
RetiresDate OpenRouter removes the model.
—

Capabilities

Index per category, out of 100.
Out of 100
AgenticMulti-step tasks with tools.None counted——
CodingCode writing and repair.None counted——
ReasoningLogic problems and puzzles.None counted——
MultimodalTasks with images and text.None counted——
KnowledgeFacts and expert knowledge.None counted——
MultilingualTasks in many languages.None counted——
InstructionTasks with strict prompt rules.None counted——
MathMath problems.None counted——

Results

0 counted
This model has no scored result.

Sources

BenchLMCC BY-NC 4.0OpenRouterTerms restrict reuse

History

5 releases
Output / 1M$2.50 → $2.50
23 Oct 202612 Nov 2026

Questions

How much does Grok 4.20 Multi-agent cost?
$1.25 per 1M input tokens, $2.50 per 1M output tokens.
How fast is Grok 4.20 Multi-agent?
312 output tokens per second, 32.5 s to the first token.
What is the context window of Grok 4.20 Multi-agent?
2M tokens.
Is Grok 4.20 Multi-agent open source?
No. Its weights are not published.
When was Grok 4.20 Multi-agent released?
March 2026.

More from xAI

All models
Grok 4.2052.8Grok 4.353.3Grok Build 0.152.7Grok RealtimeUnrankedGrok 4.1 Fast (Reasoning)47.3