Grok 4.3 API price, and what each result really costs
xAI, listed 30 Apr 2026. Price checked 12 Nov 2026; unchanged since we started tracking it. Source: xAI's pricing page. x-ai/grok-4.3
List price per million tokens
- Input
- $1.25
- Cached input
- $0.20
- Output
- $2.50
- Context window
- 1M tokens
Note: Prompts >=200K tokens: $2.50 in / $0.40 cached / $5 out.
What it costs per task, and per task that works
Six common task shapes with typical token counts. The real cost counts the tries that get redone; the rates are examples, not measurements.
| Task | Per 1,000 tries | Per 1,000 that work, 8 in 10 | Per 1,000 that work, 6 in 10 | Per 1,000 that work, 4 in 10 |
|---|---|---|---|---|
| Support bot answer3,000 in / 300 out | $4.50 | $5.63 | $7.50 | $11.25 |
| Invoice field extraction2,500 in / 250 out | $3.75 | $4.69 | $6.25 | $9.38 |
| Lead scoring1,200 in / 100 out | $1.75 | $2.19 | $2.92 | $4.38 |
| Email reply draft1,500 in / 400 out | $2.88 | $3.59 | $4.79 | $7.19 |
| Translation900 in / 800 out | $3.13 | $3.91 | $5.21 | $7.81 |
| Search re-ranking4,000 in / 50 out | $5.13 | $6.41 | $8.54 | $12.81 |
Work out your own real cost per resultTest Grok 4.3 on your own prompt
Compare Grok 4.3 with
- Grok 4.7$2.00 in / $6.00 outSwitch cost
- Gemini 3.8 Flash$0.75 in / $3.75 outSwitch cost
- GPT-5.4 mini$0.75 in / $4.50 outSwitch cost
- DeepSeek V4 Pro$1.32 in / $3.96 outSwitch cost
- GPT-6.1 Terra$1.00 in / $5.00 outSwitch cost
Questions
How much does the Grok 4.3 API cost?
$1.25 per million input tokens and $2.50 per million output tokens, or $0.20 per million for cached input. Price checked 12 Nov 2026; unchanged since we started tracking it.
What does a result that works really cost with Grok 4.3?
A support bot answer (about 3,000 tokens in, 300 out) costs $0.0045 per try. If 6 in 10 work first time, each answer that works really costs $0.0075, because the redone ones were paid for too.