Grok 4.6 — API Pricing & Benchmarks
Grok 4.6 is xAI's flagship reasoning model, released in 2026-08. The API costs $2.00 per 1M input tokens and $6.00 per 1M output tokens ($3.00 blended at a 3:1 ratio), with cached input at $0.50. It supports a 500K-token context window. On the independently measured Artificial Analysis Intelligence Index it scores 60.9, ranking #6 of 68 models tracked on this site, with a median output speed of 60 tokens/sec.
Explore provider routes and additional benchmark sources for Grok 4.6
| Provider | xAI |
| Input price / 1M tokens | $2.00 |
| Output price / 1M tokens | $6.00 |
| Cached input / 1M tokens | $0.50 |
| Blended price (3:1) | $3.00 |
| Context window | 500K |
| Max output tokens | — |
| Knowledge cutoff | 2026-02 |
| License | proprietary |
| Input modalities | T+I |
| Output speed (tok/s) | 60 |
| Released | 2026-08 |
| Artificial Analysis Intelligence Index | 60.9 |
| LMArena Elo | 1444 |
| GPQA Diamond | 94.9% |
| Humanity's Last Exam | 42.9% |
Where Grok 4.6 fits
On a blended 3:1 basis Grok 4.6 costs $3.00 per 1M tokens, cheaper than 34% of the 80 priced models in this index. As xAI's flagship it is aimed at the hardest workloads — complex reasoning, agentic coding and multi-step tool use — where output quality dominates cost. Measured output speed of 60 tokens/sec is below the index median of 104 — typical of reasoning-heavy models, and worth checking against interactive latency budgets. Cached input is priced at $0.50 (75% below standard input), which rewards prompt structures with long stable prefixes — see our caching guide.
Price history
| Period | Input $/1M | Output $/1M | Cached $/1M |
|---|---|---|---|
| 2026-08-25 → current | $2.00 | $6.00 | $0.50 |
No list-price changes recorded since tracking began. Full dataset: price-history.json (CC BY 4.0).
Alternatives at a similar price
- Grok 4.5 (xAI) — $3.00/1M blended, AA Index 55.8
- Qwen3.8-Max (Alibaba Qwen) — $3.00/1M blended, AA Index 58.1
- Mistral Medium 3.5 (Mistral AI) — $3.00/1M blended, AA Index 30.4
- Magistral Medium (Mistral AI) — $2.75/1M blended
Compare Grok 4.6
About xAI
xAI's Grok models compete aggressively on price: Grok 4.6 ties the proprietary frontier on the Artificial Analysis index at a mid-tier price point, and the older Grok 4.x models are among the cheapest ways to buy a large context window.