AI Cost Calculator / Model pricing
Grok 4.20 costs $1.25 per 1M input tokens and $2.50 per 1M output tokens (list pricing as of 2026-08-15, sourced from Xai). See the full rate card below and project your monthly spend in the calculator.
| Input | $1.25 / 1M tokens |
| Output | $2.50 / 1M tokens |
| Cache read | $0.200 / 1M tokens |
| Cache write | Not published |
| Context window | 1,000,000 tokens |
| Max output | 1,000,000 tokens |
Official source: xAI pricing page . Batch API discounts (typically 50%) are available via the calculator's Batch mode.
A chat app making 500 calls/day at 1.2K input + 400 output tokens spends roughly $37.50/mo on Grok 4.20. Enter your real workload for an exact projection and to compare against other models.
Calculate Grok 4.20 monthly cost →| Model | Provider | Input /1M | Output /1M |
|---|---|---|---|
| Llama 3.2 3b | Meta | $0.020 | $0.020 |
| Deepseek R1 Distill Llama 8b | DeepSeek | $0.025 | $0.025 |
| Llama 3.2 1b | Meta | $0.027 | $0.201 |
| Qwen3 4b | Qwen | $0.030 | $0.030 |
| Qwen3 8b | Qwen | $0.035 | $0.138 |