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Temporary creditsOpen APIActiveNo upfront payment
Unisound U2 Flash temporarily free
Unisound marks U2 Flash free for existing and new users from Sep 30 through Oct 31, 2026, with unlimited calls. Check account limits and post-promotion billing in the console.
Official terms verified
Last verified · UTC+8
Last scanned · UTC+8
Offer & quota details
具体用途范围Unverified；未明确的用途不会加入用途筛选。
- Quota & units
- Unlimited free calls during the campaign, not unlimited concurrency.
Show official excerpt
限时免费无限量调用（2026.09.30-2026.10.31）
- Eligibility
- Official page says both new and existing users qualify.
Show official excerpt
活动期间新老用户均免费调用
- After the quota runs out
- Confirm billing after the campaign and spending controls in the console.
- Claim deadline
- No explicit claim deadline published
API integration
Official documentation checks and live API tests are separate. This site has not claimed these offers or tested the APIs for you.
- API Base URL
- Configure using the official documentation and account region
- Protocol
- See the official integration documentation
- Model IDs / scope
u2-flash- Official website可访问
- Unknown / Not tested
- 账号可注册
- Unknown / Not tested
- China服务器调用已验证
- Unknown / Not tested
- 是否需要信用卡
- Unknown / Not tested
下一步：核对items件与API region
选择符合账号items件的 API，再View model details与配置；Ended活动可以继续查看同类Active活动。
Sources & verification
云知声 U2 免费模型活动 · Monitoring enabled
u2-flash
Official page checked Oct 9, 2026; no account claim or mainland-server API test.
Read official termsYour official account determines eligibility and remaining credits. Deadline alerts use explicit claim dates, not inferred dates from credit validity.