Friday, August 21, 2026 · No. 390Prices synced 3 hours ago
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The AI Model Price Index

Grok 4.20 Beta Reasoning (0309) (xAI)

by LLM Gateway · family grok · listed Mar 2026RTV

Grok model for agentic tool use, reasoning, coding, and live assistance

Current rates USD per 1M tokens

Input$2.00
Output$6.00
Cache read$0.20
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
DeepSeek V4 ProDeepSeek V4 Pro: $0.435 per 1M tokens$0.435Gemini 3.7 FlashGemini 3.7 Flash: $0.75 per 1M tokens$0.75Mistral Medium 3.5Mistral Medium 3.5: $1.50 per 1M tokens$1.50Grok 4.20 Beta Reasoning (0309) (xAI)Grok 4.20 Beta Reasoning (0309) (xAI): $2.00 per 1M tokens$2.00Grok 4.6Grok 4.6: $2.00 per 1M tokens$2.00Qwen3.8 MaxQwen3.8 Max: $2.00 per 1M tokens$2.00Claude Opus 5Claude Opus 5: $5.00 per 1M tokens$5.00GPT-5.6 SolGPT-5.6 Sol: $5.00 per 1M tokens$5.00
Output price vs. maker flagships ($/1M tokens)
DeepSeek V4 ProDeepSeek V4 Pro: $0.87 per 1M tokens$0.87Gemini 3.7 FlashGemini 3.7 Flash: $3.75 per 1M tokens$3.75Grok 4.20 Beta Reasoning (0309) (xAI)Grok 4.20 Beta Reasoning (0309) (xAI): $6.00 per 1M tokens$6.00Grok 4.6Grok 4.6: $6.00 per 1M tokens$6.00Qwen3.8 MaxQwen3.8 Max: $6.00 per 1M tokens$6.00Mistral Medium 3.5Mistral Medium 3.5: $7.50 per 1M tokens$7.50Claude Opus 5Claude Opus 5: $25.00 per 1M tokens$25.00GPT-5.6 SolGPT-5.6 Sol: $30.00 per 1M tokens$30.00

On the record

Model id
xai/grok-4-20-beta-0309-reasoning
Context window
2M 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
llmgateway.io/docs

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