xAI · Workhorse
Grok 4.20
A cheaper xAI tier with clearly published per-token pricing, sitting between the budget open-weight models and the frontier tiers.
What that means
A worked example
Per-token pricing is hard to feel. Take a moderately chatty production workload: 100 calls a day, roughly 10,000 tokens in and 2,000 out each time. On Grok 4.20 that comes to about:
$53 / month
Before caching, batching or volume discounts, all of which move this number a long way. Illustrative only.
Strong at
- -Low output token cost
Typical use
- -Long-output generation
- -Cost-sensitive assistants
Same tier
What else to look at
| Model | Developer | Context | In / 1M | Out / 1M |
|---|---|---|---|---|
| Claude Sonnet 5 | Anthropic | 1M | $3 | $15 |
| Claude Sonnet 4.6 | Anthropic | 1M | $3 | $15 |
| GPT-5.6 Terra | OpenAI | 1M | $2 | $12 |
| GPT-5.4 | OpenAI | - | $2.50 | $15 |
| Gemini 3.6 Flash | 1M | $1.50 | $7.50 |
Verified 2026-08-07.