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
Workload
Grok 4.7
Muse Spark 1.3
Chatbot1,000 in / 500 out tokens, 10,000 requests a day
$1,500/mo
$1,013/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day
$2,850/mo
$1,819/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input
$1,560/mo
$810.00/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
Grok 4.7
Muse Spark 1.3
Context
500,000 tokens
1,048,576 tokens
Max output
500,000 tokens
131,072 tokens
Input
text, image, pdf
text, image, video, pdf, audio
Tool calling
Yes
Yes
Reasoning
Yes
Yes
Structured outputs
Yes
Yes
Questions
What is the price difference between Grok 4.7 and Muse Spark 1.3?
Grok 4.7: $2.00 per 1M input tokens and $6.00 per 1M output tokens. Muse Spark 1.3: $1.25 per 1M input tokens and $4.25 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $1,500 per month for Grok 4.7 and $1,013 for Muse Spark 1.3.
Which has the longer context window, Grok 4.7 or Muse Spark 1.3?
Muse Spark 1.3 has the longer context window: up to 1,048,576 tokens, compared with 500,000 for Grok 4.7.
Do Grok 4.7 and Muse Spark 1.3 have prompt caching and batch prices?
Grok 4.7: cached input $0.50 per 1M tokens; no batch price published. Muse Spark 1.3: cached input $0.15 per 1M tokens; no batch price published.