Thursday, September 17, 2026 · No. 417Prices synced 5 hours ago
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The AI Model Price Index

Grok 4.20 (Reasoning)

by OCI Generative AI · family grok · listed Mar 2026RTV

Reasoning Grok for document-heavy analysis and long-horizon tool use

Current rates USD per 1M tokens

Input$1.25
Output$2.50
Cache read$0.20
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.15 per 1M tokens$0.15Qwen3.8 FlashQwen3.8 Flash: $0.15 per 1M tokens$0.15Gemini 3.8 FlashGemini 3.8 Flash: $0.75 per 1M tokens$0.75Grok 4.20 (Reasoning)Grok 4.20 (Reasoning): $1.25 per 1M tokens$1.25GLM-5.2GLM-5.2: $1.40 per 1M tokens$1.40Grok 4.6Grok 4.6: $2.00 per 1M tokens$2.00Claude Fable 5.1Claude Fable 5.1: $10.00 per 1M tokens$10.00GPT-6 AstraGPT-6 Astra: $10.00 per 1M tokens$10.00
Output price vs. maker flagships ($/1M tokens)
Qwen3.8 FlashQwen3.8 Flash: $0.47 per 1M tokens$0.47DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.60 per 1M tokens$0.60Grok 4.20 (Reasoning)Grok 4.20 (Reasoning): $2.50 per 1M tokens$2.50Gemini 3.8 FlashGemini 3.8 Flash: $3.75 per 1M tokens$3.75GLM-5.2GLM-5.2: $4.40 per 1M tokens$4.40Grok 4.6Grok 4.6: $6.00 per 1M tokens$6.00Claude Fable 5.1Claude Fable 5.1: $50.00 per 1M tokens$50.00GPT-6 AstraGPT-6 Astra: $50.00 per 1M tokens$50.00

On the record

Model id
xai.grok-4.20-reasoning
Context window
1M tokens
Max output
30K tokens
Input modalities
text, image
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
—
Released
2026-03-09
Last updated
2026-03-09
Provider docs
docs.oracle.com/en-us/iaas/Content/generative-ai/pretrained-models.htm

Back of the envelope

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