Grok 4.3 API Pricing — $1.25/M input, $2.50/M output
xAI general purpose flagship: highly capable, extremely fast, 1M context.
Speed
Tokens / sec
98
TTFT
320 ms
Rank
#17 of 31
$ / M ÷ t/s
$0.02
Measured with 5 runs on a fixed prompt — see the full methodology.
Cost at scale
| Tokens / month | Est. cost (blended 3:1) |
|---|---|
| 100,000 | $0.16 |
| 1,000,000 | $1.56 |
| 10,000,000 | $15.63 |
| 100,000,000 | $156.25 |
How Grok 4.3 compares
Grok-3 Mini — $0.26/MGrok-3 — $2.50/MGrok-4.20 Reasoning — $3.00/MGrok-4.20 — $3.00/MGPT-5.4 Mini — $1.69/MGemini 3.1 Flash — $1.69/MAmazon Nova Pro — $1.40/M
Head-to-head comparisons
FAQ
Is Grok 4.3 cheaper than GPT-5.4 Mini?
Grok 4.3 costs $1.56/M blended tokens, GPT-5.4 Mini costs $1.69/M — Grok 4.3 is cheaper.
How much does 1 million tokens cost with Grok 4.3?
At a 3:1 input:output ratio, 1 million blended tokens costs approximately $1.56. Pure input costs $1.25/M; pure output costs $2.50/M.
Who provides Grok 4.3?
Grok 4.3 is served by xAI. Pricing was last verified on 2026-05-19 against https://docs.x.ai/docs/overview#pricing.
