xAI

Grok 4.20

x-ai/grok-4.20

JSON

Specification

Published by the vendor; the platform bills at the target's declared price.

Grok 4.20

reasoning tools

xAI x-ai/grok-4.20

Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

Input $/1M: $1.25
Output $/1M: $2.50
Context: 2M
Max output: 1.8M
Released: Mar 31, 2026
Modalities: textimagefile

Cached input reads $0.20 per 1M

On this deployment

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Not routable here yet

Add a target with metadata.model set to this id.

targets.yamlyaml

# targets.yaml - declare a target that runs Grok 4.20
targets:
  - id: grok-4-20
    kind: llm
    name: Grok 4.20
    metadata:
      model: x-ai/grok-4.20          # links the target to this catalogue entry
    capabilities:
      domains: [general]
      supports_tools: true
      context_window: 2000000
    cost:
      usd_per_1k_tokens: 0.001875

Price among xAI models

Input list price per million tokens; Grok 4.20 is the 3rd cheapest of 8 listed.

1
Grok Build 0.1
$1.00
2
Grok 4.3 (batch)
$1.00
3
Grok 4.20
$1.25
4
Grok 4.3
$1.25
5
Grok 4.20 Multi-Agent
$1.25
6
Grok 4.6
$2.00
7
Grok 4.5
$2.00
8
Grok Latest
$2.00

More from xAI

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