$2 / $6per 1M tokens in / out
$0.50cache read · −75%
$1.14per task at medium?
#75on OpenRouter by tokens · 147B / week
Price sheetper 1M tokens
| Input | $2 | list |
| Output | $6 | |
| Cache read | $0.50 | −75% vs input |
| Context · max output | 500K · 450K | tokens |
Cost per task by effort?
low$0.3827.6
mediumAPI default$1.1442.1
high$1.4842.9
xhigh$1.7544.1
per taskHumanity's Last Exam
Same price per token at every effort; the bill grows with reasoning tokens. xhigh costs 1.5× medium for +1.9 points.
Where to buy3 providers · per 1M tokens
| Provider | Input | Output | Context |
|---|---|---|---|
| x-ai | $2 | $6 | — |
| xAIlab | $2 | $6 | 500K |
| Amazon Bedrock | $2.20 | $6.60 | 500K |
In xAI's line-upper 1M in / out
| Grok 4.20 Non-Reasoning | $1.25 / $2.50 | −48% |
| Grok 4.20 Reasoning | $1.25 / $2.50 | −48% |
| Grok 4.20 0309 Non Reasoning | $1.25 / $2.50 | −48% |
| Grok 4.20 0309 Reasoning | $1.25 / $2.50 | −48% |
| Grok 4.20 Multi Agent 0309 | $1.25 / $2.50 | −48% |
| Grok 4.6 | $2 / $6 | this model |
| Grok 4.7 | $2 / $6 | 0% |
Cheaper for the same workvs Grok 4.6 at medium
| GPT-6.1 Sol max | -37% | score +21% | $0.72 |
| GPT-6 Sol max | -9% | score +11% | $1.04 |
| Claude Sonnet 5.5 high | -23% | score +9% | $0.88 |
| MiMo v2.6 Pro thinkingOpen | -88% | score +8% | $0.13 |
| GPT-6 Astra low | -29% | score +7% | $0.82 |
Pricing questions
How much does Grok 4.6 cost?›
$2 per 1M input tokens and $6 per 1M output tokens. Cached input is $0.50. One Intelligence Index task costs about $1.14 at the default effort.
Is Grok 4.6 free to use?›
There is no free API tier.
How much does prompt caching save?›
Cache reads cost $0.50 per 1M, 75% below the input price.
Is Grok 4.6 cheaper than Grok 4.3?›
No: $2 / $6 against $1.25 / $2.50, 92% more per token.
How does effort change the price?›
The price per token is the same at every effort. Higher effort spends more reasoning tokens: a task costs $0.38 at low, $1.14 at medium, $1.48 at high, $1.75 at xhigh.
What is a cheaper alternative to Grok 4.6?›
GPT-6.1 Sol at max effort costs -37% per task with a score +21% on Humanity's Last Exam.