Grok 4.5 API Pricing — $2.00/M input, $6.00/M output
Coding-focused xAI model for agents, engineering, and complex workflow tasks.
Full specs, context window and API limits →How much does Grok 4.5 cost per million tokens?
Grok 4.5, from xAI, charges $2.00 per million input tokens and $6.00 per million output tokens — $3.00 per million blended at a 3:1 input:output ratio. That makes it pricier than Grok-4.20 Reasoning on a blended-token basis.
Verified 2026-08-14 — source
Speed
Not yet measured — see the speed benchmark leaderboard for models we do track.
Cost at scale
| Tokens / month | Est. cost (blended 3:1) |
|---|---|
| 100,000 | $0.30 |
| 1,000,000 | $3.00 |
| 10,000,000 | $30.00 |
| 100,000,000 | $300.00 |
How Grok 4.5 compares
Grok-3 Mini — $0.26/MGrok 4.3 — $1.56/MGrok-3 — $2.50/MGrok-4.20 Reasoning — $3.00/MGrok-4.20 — $3.00/MGrok-4.20 Reasoning — $3.00/MGrok-4.20 — $3.00/MGrok 4.6 — $3.00/M
Best for
Grok 4.5 next steps
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Head-to-head comparisons
FAQ
Is Grok 4.5 cheaper than Grok-4.20 Reasoning?
Grok 4.5 costs $3.00/M blended tokens, Grok-4.20 Reasoning costs $3.00/M — Grok-4.20 Reasoning is cheaper.
How much does 1 million tokens cost with Grok 4.5?
At a 3:1 input:output ratio, 1 million blended tokens costs approximately $3.00. Pure input costs $2.00/M; pure output costs $6.00/M.
What does Grok 4.5 cost at high volume?
At 100 million blended tokens a month, Grok 4.5 costs approximately $300.00. See the cost-at-scale table below for other volumes.