xAI · AI model API pricing
How much does Grok 4.3 cost?
The value pick of the mid tier — output tokens at $2.50 undercut everything of comparable class.
Rate card
| Input tokens | $1.25 / 1M |
| Cached input | $0.20 / 1M |
| Output tokens | $2.5 / 1M |
| Context window | 1M |
What that means per month
| Workload | Tokens / month | Cost / month |
|---|---|---|
| Prototype | 1M in · 0.3M out | $2/mo |
| Small app | 10M in · 3M out | $20/mo |
| Production app | 50M in · 15M out | $100/mo |
| High volume | 200M in · 60M out | $400/mo |
| Heavy platform | 1B in · 300M out | $2,000/mo |
Standard on-demand rates from xAI's official model docs, last checked 2026-07-16. Rates shown are for prompts under 200k tokens; above that, prices double. Monthly figures exclude caching and batch discounts. Confirm live pricing before committing.
Cheaper alternatives
At a reference workload of 10M input / 3M output tokens a month, these cost less than Grok 4.3 ($20/mo):
-
GLM-4.7 $12.6/mo -
Mistral Large 3 $9.50/mo -
Qwen-Plus $7.60/mo