Grok 3 Fast pricing
Source: litellm · updated 2026-10-27
Short answer: Grok 3 Fast costs $5.00 per million input tokens and $25.00 per million output tokens. That is a 3:1 blended rate of $10.00 per million tokens, ranking it #667 of 704 tracked models by input price.
Price breakdown
| Metric | USD |
|---|---|
| Input, per 1M tokens | $5.00 |
| Output, per 1M tokens | $25.00 |
| Output รท input multiple | 5.00× |
| 3:1 blended, per 1M tokens | $10.00 |
| Context window | 131,072 tokens |
What a typical workload costs
| Monthly volume | Input cost | Output cost | Total | 1M in / 250K out | $5.00 | $6.25 | $11.25 |
|---|---|---|---|---|---|---|---|
| 10M in / 2.5M out | $50.00 | $62.50 | $112 | ||||
| 100M in / 25M out | $500 | $625 | $1,125 |
Other vercel_ai_gateway models
| Model | Input | Output |
|---|---|---|
| Ministral 3 B | $0.040 | $0.040 |
| Llama 3.8 B | $0.050 | $0.080 |
| Devstral Small | $0.070 | $0.280 |
| Qwen 3 14 B | $0.080 | $0.240 |
| Qwen 3 30 B | $0.100 | $0.300 |
Cheaper alternatives
Next cheaper option: Us Gov Anthropic Claude Opus 5.5 at $4.80 per 1M input tokens. Next step up: Au Anthropic Claude Opus 4.6 at $5.50 per 1M input tokens.