GPT-6.1 Sol vs Grok 4.7 pricing

Prices

GPT-6.1 Sol and Grok 4.7 prices, USD per 1M tokens
USD per 1M tokensGPT-6.1 SolGrok 4.7
Input$2.00$2.00
Output$10.00$6.00
Cache read$0.10$0.50
Cache write$2.50Not published
Batch input$1.00Not published
Batch output$5.00Not published

Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page

xAI's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation

Monthly cost by workload

WorkloadGPT-6.1 SolGrok 4.7
Chatbot1,000 in / 500 out tokens, 10,000 requests a day$2,100/mo$1,500/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day$3,150/mo$2,850/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input$1,320/mo$1,560/mo

Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.

Context and capabilities

GPT-6.1 SolGrok 4.7
Context1,050,000 tokens500,000 tokens
Max output128,000 tokens500,000 tokens
Inputtext, image, pdftext, image, pdf
Tool callingYesYes
ReasoningYesYes
Structured outputsYesYes

Questions

What is the price difference between GPT-6.1 Sol and Grok 4.7?
GPT-6.1 Sol: $2.00 per 1M input tokens and $10.00 per 1M output tokens. Grok 4.7: $2.00 per 1M input tokens and $6.00 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $2,100 per month for GPT-6.1 Sol and $1,500 for Grok 4.7.
Which has the longer context window, GPT-6.1 Sol or Grok 4.7?
GPT-6.1 Sol has the longer context window: up to 1,050,000 tokens, compared with 500,000 for Grok 4.7.
Do GPT-6.1 Sol and Grok 4.7 have prompt caching and batch prices?
GPT-6.1 Sol: cached input $0.10 per 1M tokens; batch $1.00 per 1M input tokens and $5.00 per 1M output tokens. Grok 4.7: cached input $0.50 per 1M tokens; no batch price published.

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