Pricing · xAI
Grok 4.6
xAI's grok-4.6, 500K tokens of context. Every number on this page was read off xAI's own pricing
page — never estimated, never recalled from memory.
How xAI describes it
“SpaceXAI's frontier model for coding, agentic tasks, and knowledge work.”
From xAI's documentation
- Long prompts: “We charge different rates for requests which exceed the 200K context window” (model page, read October 1, 2026)
- Batch API: “Batch API Not supported” (model page, read October 1, 2026)
- Reasoning effort: “Reasoning efforts Supported low, medium, high, xhigh Default high” (model page, read October 1, 2026)
Pricing
| Input | $2.00 | per 1M tokens |
|---|---|---|
| Output | $6.00 | per 1M tokens |
| Cached input | $0.50 | per 1M tokens · 0.25× the input price |
Long-prompt tiers
Pricing changes above a prompt-size threshold. If your average request is near the boundary, the effective rate is not the headline rate.
| Condition | Input | Output | Cached input |
|---|---|---|---|
| prompt ≥ 200000 tokens | $4.00 | $12.00 | $1.00 |
At the calculator's starting volume, 1M input tokens and 200K output tokens with no cache hits, Grok 4.6 costs $3.20: $2.00 for input and $1.20 for output, at the prices above. Same formula as the calculator; change the volume there.
Where this price sits
$2.00 per 1M input tokens (for prompts under 200K tokens) is the 39th cheapest input price of the 67 current models with a verified price on this site, and the 6th of xAI's 8. Output costs 3.0× the input price.
Other current models in the Grok family:
- Grok Build 0.1 256K tokens $1.00 in · $2.00 out
- Grok 4.3 1M tokens $1.25 in · $2.50 out
- Grok 4.20 (reasoning) 1M tokens $1.25 in · $2.50 out
- Grok 4.20 (non-reasoning) 1M tokens $1.25 in · $2.50 out
- Grok 4.20 Multi-agent 1M tokens $1.25 in · $2.50 out
- Grok 4.7 500K tokens $2.00 in · $6.00 out
- Grok 4.5 500K tokens $2.00 in · $6.00 out
Mentioned in
2 posts on this site cite Grok 4.6. The sentence is the post's own, taken from where it links here.
-
Prompt Caching Is Not 10% Everywhere: What a Cache Hit Costs Across Eight Providers · September 16, 2026
No single multiplier: Grok 4.6 is $0.50 cached on $2.00 of input, 0.25×; Grok 4.5 $0.30 on the same $2.00, 0.15×; Grok 4.3 and the three Grok 4.20 variants $0.20 on $1.25, 0.16×; Grok Build 0.1 $0.20 on $1.00, 0.20×.
-
Five Things Decide What You Pay for a Model, and Only One of Them Is the Model · September 15, 2026
Grok 4.6 is $2.00; from 200,000 tokens it is $4.00 (September 14), and xAI's pricing page states that once a prompt reaches the threshold the long-context rate applies to every token in the request.
Against Grok 4.5
Grok 4.5 is the earlier version of the same name in this dataset (still current). Against Grok 4.5, Grok 4.6 has the same input price ($2.00); the same output price ($6.00); cached input at $0.50 against $0.30, 1.7× as much (per 1M tokens). Its prices were verified September 28, 2026: Grok 4.5 pricing →
Specifications
| API model id | grok-4.6 | |
|---|---|---|
| Provider | xAI | |
| Family | Grok | |
| Context window | 500K tokens | |
| Knowledge cutoff | 2026-02-01 | |
| Released | August 12, 2026 | |
| Status | Current | |
Grok 4.6 was released on August 12, 2026.
Questions about Grok 4.6 pricing
- How much does Grok 4.6 cost per million tokens?
- $2.00 per 1M input tokens and $6.00 per 1M output tokens for prompts under 200,000 tokens, read on xAI's official pricing page on September 28, 2026.
- What does a cached input token cost on Grok 4.6?
- $0.50 per 1M cached input tokens, 25% of the $2.00 input price.
- Does Grok 4.6 cost more for long prompts?
- Yes. For prompts of 200,000 tokens or more it costs $4.00 per 1M input tokens and $12.00 per 1M output tokens, $1.00 for cached input, against $2.00 and $6.00 below that.
Verified September 28, 2026 against xAI's official pricing page. Confidence: confirmed. No price change recorded for this model. How the data is checked.
Other xAI models with a verified price
- Grok Build 0.1 Grok $1.00 in · $2.00 out
- Grok 4.3 Grok $1.25 in · $2.50 out
- Grok 4.20 (reasoning) Grok $1.25 in · $2.50 out
- Grok 4.20 (non-reasoning) Grok $1.25 in · $2.50 out
- Grok 4.20 Multi-agent Grok $1.25 in · $2.50 out
- Grok 4.7 Grok $2.00 in · $6.00 out
- Grok 4.5 Grok $2.00 in · $6.00 out
Cheaper or equally priced alternatives
Current models with an input price at or below $2.00 per 1M tokens.
- GPT-6.1 Sol OpenAI $2.00 in · $10.00 out
- GPT-6 Sol OpenAI $2.00 in · $10.00 out
- GPT-5.6 Terra OpenAI $2.00 in · $12.00 out
- Claude Sonnet 5.5 Anthropic $2.00 in · $10.00 out
Compare every model in one table →
Work out what this costs at your volume →