Pro - FREE
Starter
$0per 30 days
Free
- 5-hour allowance
- $5.00
- 7-day allowance
- $20.00
Best for: First-time use, occasional calls, and lightweight personal projects
Free Model
Free GPT API Plans with Rolling Usage Limits
APIMaster Free Model provides a $0 GPT API plan and paid 30-day subscriptions. Each plan includes both a rolling 5-hour allowance and a rolling 7-day allowance, measured in official list-price usage; when either limit is reached, subsequent requests fall back to wallet billing.
Currently in limited testing
A letter to our users
We believe everyone should have the opportunity to benefit from AI, so we offer free and paid plans for different needs. To reserve free access for people who genuinely need it, the free tier requires a connected Twitter or Telegram account, and bulk registration is prohibited. Plans are for the subscriber's own use only; resale, sharing, or account pooling may lead to suspension. We cannot promise how long the free plan will remain available and may adjust or close it based on sustainable operating costs, but we will do our best to keep providing free access within our means and add more free models in the future.
— The APIMaster.ai Team
Free Model plans and prices
Choose a tier based on your normal 7-day API usage. Prices and allowances below are loaded from the current APIMaster plan catalog.
Pro+
Standard
$10per 30 days
- 5-hour allowance
- $10.00
- 7-day allowance
- $66.00
Best for: Light development, small tools, and low-frequency automation
Recommended
Max
Professional
$20per 30 days
- 5-hour allowance
- $20.00
- 7-day allowance
- $132.00
Best for: Moderate development, reliable automation, and frequent personal workflows
Ultra
Advanced
$100per 30 days
- 5-hour allowance
- $100.00
- 7-day allowance
- $660.00
Best for: Heavy development, frequent tasks, and production environments
Power
Flagship
$200per 30 days
- 5-hour allowance
- $200.00
- 7-day allowance
- $1,320.00
Best for: Teams and sustained high-intensity production workloads
Supported GPT API models
The model list is controlled by the live plan catalog and may change as APIMaster adds or updates GPT models.
- gpt-5.4
- gpt-5.4-mini
- gpt-5.5
- gpt-5.6-luna
- gpt-5.6-sol
- gpt-5.6-terra
Free Model plan comparison
| Plan | 30-day price | 5-hour allowance | 7-day allowance | Supported models |
|---|---|---|---|---|
| Pro - FREE | $0 | $5.00 | $20.00 | gpt-5.4, gpt-5.4-mini, gpt-5.5, gpt-5.6-luna, gpt-5.6-sol, gpt-5.6-terra |
| Pro+ | $10 | $10.00 | $66.00 | gpt-5.4, gpt-5.4-mini, gpt-5.5, gpt-5.6-luna, gpt-5.6-sol, gpt-5.6-terra |
| Max | $20 | $20.00 | $132.00 | gpt-5.4, gpt-5.4-mini, gpt-5.5, gpt-5.6-luna, gpt-5.6-sol, gpt-5.6-terra |
| Ultra | $100 | $100.00 | $660.00 | gpt-5.4, gpt-5.4-mini, gpt-5.5, gpt-5.6-luna, gpt-5.6-sol, gpt-5.6-terra |
| Power | $200 | $200.00 | $1,320.00 | gpt-5.4, gpt-5.4-mini, gpt-5.5, gpt-5.6-luna, gpt-5.6-sol, gpt-5.6-terra |
How Free Model usage works
- 01
Choose one 30-day plan
One user can have one active Free Model subscription at a time. Select the tier that matches your expected GPT API workload.
- 02
Usage is checked in two rolling windows
Every successful request counts toward both the previous 5 hours and the previous 7 days. Reaching either allowance pauses subscription billing for new requests.
- 03
Wallet balance provides fallback
After a rolling allowance is reached, supported requests can continue using wallet balance at the applicable API price, provided the wallet has enough credit.
Eligibility and account-use rules
- The $0 tier is intended for genuine individual use. Claiming it requires a connected Twitter or Telegram account, and bulk account registration is prohibited.
- Free Model subscriptions are for the subscriber's own use. Resale, credential sharing, and pooled account use are prohibited and may result in account suspension.
- Paid upgrades take effect immediately. Eligible unused value from the current plan is applied to the new plan; it is not returned to a wallet or payment method.
Free Model FAQ
Is there a free GPT API plan?
Yes. Free Model includes a $0 entry tier for eligible individual users. Claiming the free tier requires a connected Twitter or Telegram account, and availability may be limited during testing.
How do the 5-hour and 7-day rolling limits work?
At each request, APIMaster checks successful official-price usage during the immediately preceding 5 hours and 7 days. The request can use the subscription only when both windows have remaining allowance.
What happens when a Free Model allowance is reached?
When either rolling limit is reached, new supported requests fall back to wallet billing. If the wallet has insufficient balance, the request is rejected for insufficient quota.
Can I share or resell a Free Model subscription?
No. Every Free Model plan is for the subscriber's own use. Reselling access, sharing credentials, or pooling one account across multiple users is prohibited and may lead to immediate suspension.
Which GPT API models are included?
The supported models are shown in the live catalog on this page. APIMaster can update the model allowlist as models become available or change.
Does unused allowance become wallet credit?
No. The 5-hour and 7-day amounts are rolling usage limits, not stored wallet credit. They cannot be withdrawn, transferred, or refunded as cash.
Choose a plan when Free Model opens to your account
Free Model is being released in stages. Sign in to check your account access; purchasing and activation remain protected by server-side eligibility checks.
Plan catalog last updated：August 15, 2026