DeepSeek V4 Flash, DeepSeek V4 Flash Vision, and HY3 are now available as a free API credit through b.ai. No credit card and no payment details are required. You simply register a new account, create an API key, and plug the models into 9Router or your favorite agent harness to start building right away.
About This Offer
This giveaway provides free API access to three in-demand models: deepseek-v4-flash, deepseek-v4-flash-vision-exp, and hy3. The credit is usable through any OpenAI-compatible setup, which makes it easy to connect to 9Router, agent harnesses, and custom tooling.
It is a great opportunity for developers, AI builders, and automation enthusiasts who want to test these models at scale without spending anything upfront.
What You Get
- Free API access to DeepSeek V4 Flash, DeepSeek V4 Flash Vision, and HY3
- No credit card or payment needed, just a simple registration
- Base URL: https://api.b.ai/v1
- OpenAI-compatible API key that works with 9Router and agent harnesses
- Multiple model IDs included in one account:
deepseek-v4-flash,deepseek-v4-flash-vision-exp,hy3
→ Visit b.ai to Claim Free DeepSeek V4 Access
How to Claim
- Visit the b.ai chat page and make sure you use the referral code shown in the link.
- Register a brand new account on b.ai.
- Open the API menu in the sidebar.
- Click Create API Key to generate your key.
- Copy the key and use it with the base URL
https://api.b.ai/v1in 9Router, an agent harness, or your own application.
Your API key works with any of these model IDs:
deepseek-v4-flashdeepseek-v4-flash-vision-exphy3
Important Notes
- Make sure to use the referral code link when you sign up, otherwise the free credit may not be applied.
- No credit card or payment method is required during registration.
- The base URL for all API calls is
https://api.b.ai/v1. - Free credit offers can be limited in availability, so claim your access as soon as possible.
Frequently Asked Questions
Do I need a credit card to claim this?
No. You only need to register a new account and create an API key. No credit card or payment details are required.
Which models are included?
The offer includes three model IDs: deepseek-v4-flash, deepseek-v4-flash-vision-exp, and hy3. You can use all of them with the same API key.
Can I use this with 9Router or an agent harness?
Yes. The API is OpenAI-compatible, so you can point 9Router or your agent harness at the base URL https://api.b.ai/v1 and use the API key you created.