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Model record / xAI
Access grok-4.20-reasoning from xAI through one OpenAI-compatible API with live market-linked pricing and usage-based billing.
Requests above 200,000 input tokens use $2.125 input and $4.25 output per 1M tokens.
See how much this model saves and when its recorded price has been lowest.
Savings are visible now, but a best-time recommendation needs at least 12 observations across 6 different hours.
Average saved
15.0%
Cheapest time
Collecting data
Hourly coverage
4/24
Signal quality
Early
Hover a bar for savings per token and observation counts.
Source buckets are UTC; labels are converted to UTC.
Last 24 hours
#129
of 273 ranked models
Last 7 days
#129
of 273 ranked models
Last 30 days
#132
of 275 ranked models
Ready when you are
Marketplace pricing, capped at list, optimized further.
curl https://api.cheaperinference.com/v1/chat/completions \ -H "Authorization: Bearer ci_live_YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "grok-4.20-reasoning", "messages": [{"role": "user", "content": "Hello!"}] }'