Inference Space

AI credits for development and production

Top up once and pay by actual model usage. Use Coding Plan for daily development, API credits for live traffic.

Production calls first

API Pay As You Go

Top up into USD credits for server APIs, batch jobs, and shared team usage. Credits do not expire, and unused balance can be refunded.

Credit Top-Up

Minimum top-up: ¥1

Credits never expire

Your balance does not reset at month end.

Unused balance is refundable

Unused balance can be refunded under the refund rules.

Built for production scale

Use one balance across APIs, batch jobs, and teams.

Real-time model billingTraceable usage detailAuto-recharge availableAccepts Alipay

Mainstream official pricing

USD per 1M tokens, grouped by official context tier.

View all models

GPT-5.5

Short context

Input

$5

Cached input

$0.5

Output

$30

GPT-5.5

Long context

Input

$10

Cached input

$1

Output

$45

GPT-5.4

Short context

Input

$2.5

Cached input

$0.25

Output

$15

GPT-5.4

Long context

Input

$5

Cached input

$0.5

Output

$22.5

GPT-5.4 Mini

Standard

Input

$0.75

Cached input

$0.075

Output

$4.5

GPT-5.3 Codex

Standard

Input

$1.75

Cached input

$0.175

Output

$14

Claude Opus 4.8

Full context

Input

$5

Cached input

$0.5

Output

$25

Claude Opus 4.7

Full context

Input

$5

Cached input

$0.5

Output

$25

Claude Opus 4.6

Full context

Input

$5

Cached input

$0.5

Output

$25

Claude Sonnet 4.6

Full context

Input

$3

Cached input

$0.3

Output

$15

Official API standard pricing. CNY top-ups convert to USD credits at checkout.

Frequently Asked Questions

How does billing work?
You pay per API call based on the model's token/image pricing. Credits are deducted in real-time. Free models don't consume any credits.
What happens when credits run out?
API calls to paid models will return a 402 error. Free models continue to work. You can enable auto-recharge to avoid interruptions.
Is there a free tier?
Yes! All users get 50 free requests per day and access to 25+ free models with no credit card required.
Can I get a refund?
Unused credits can be refunded within 30 days of purchase. Contact support for refund requests.
What payment methods do you accept?
We accept Alipay for top-ups. More payment channels are coming soon.