Monthly creditsPartially privateHigh confidence
Lightning AI Model APIs / litAI
$15 in credits refresh on a published schedule.
Free accessMonthly credits
Payment cardNo
AccountRequired
Sources11 first-party links
API endpoint
https://lightning.ai/api/v1Models mentioned
lightning-ai/nvidia-nemotron-3-ultra-550b-a55blightning-ai/deepseek-v4-prolightning-ai/gemma-4-31B-itlightning-ai/gpt-oss-120banthropic/claude-opus-4-8google/gemini-3.5-flashopenai/gpt-5.5-2026-04-23Equivalent paid value
Daily$0.49
Weekly$3.45
Monthly$15.00
One-time—
How this was valued: Conservative face value of the separately documented recurring platform balance. The advertised 30M Model API tokens are excluded because public pages do not reconcile them with token-priced litAI calls.
The signed-in billing page is authoritative; do not add the 30M-token claim to the $15 balance without confirming whether they are independent.
Limits and terms
- Advertised Model API Tokens Per Month
- 30,000,000
- Requests Per Minute
- 15
- Tokens Per Minute
- 120,000
- Separate Platform Credits USD Per Month
- 15
- Reset
- Free platform balance is topped up to $15 on the first of each month and does not accumulate.
- Caveat
- Public pages do not fully reconcile the 30M-token promise with token-priced litAI calls and the separate $15 balance; the signed-in billing page is authoritative.
What happens to your prompts?
Partially privatePartial review
Model-API retention, training, publisher access, and plan-specific protections are not documented fully.
- Plan Scope
- Lightning AI platform and hosted Model APIs; model publishers and deployed applications can add separate terms.
- Prompt Retention
- No Model-API-specific content retention period was found in the public legal or product documentation.
- Response Retention
- not documented
- Ordinary Logging
- Platform account, use, diagnostic, and security information may be collected; content logging is not clearly separated.
- Model Training
- No plan-specific commitment excluding free Model API inputs and outputs from training was found.
- Product Improvement
- General platform information may be used to operate and improve services; the treatment of inference content is unclear.
- Human Or Operator Access
- Lightning and the publisher/operator of a model endpoint may technically process content; no universal operator-access limitation is published.
- Subprocessors And Routing
- Requests run on Lightning infrastructure and can target third-party-published models or apps, creating a separate publisher trust boundary.
- Deletion Controls
- General account/privacy rights exist, but no per-request content deletion or TTL was found.
- Caveat
- Security and general legal policies do not establish a uniform privacy contract for every community Model API.
Governing documents
- Terms Of Service
- https://lightning.ai/terms-of-service
- Privacy Policy
- https://lightning.ai/privacy-policy
Eligibility
- Account Required
- Yes
- Payment Method Required
- No
- Phone Verification Required
- Yes
- Country Availability Applies
- Yes
- One Free Account Per Person
- Yes
Primary sources
Official DocsModel APIshttps://lightning.ai/docs/overview/model-apisOfficial CatalogModel API cataloghttps://api.lightning.ai/modelsOfficial PricingLightning pricinghttps://lightning.ai/pricingOfficial DocsAccount creation and free-credit eligibilityhttps://lightning.ai/docs/platform/overview/faq/create-accountOfficial DocsBillinghttps://lightning.ai/docs/overview/faq/billingOfficial TermsLightning AI Terms of Servicehttps://lightning.ai/terms-of-serviceOfficial PrivacyLightning AI Privacy Policyhttps://lightning.ai/privacy-policyCompany Press ReleaseLightning AI and Voltage Park complete merger (over 400,000 developers, startups and enterprises), 2026-01-21https://www.businesswire.com/news/home/20260121371691/en/Lightning-AI-and-Voltage-Park-Complete-Merger-to-Create-the-First-Cloud-Built-for-AIPackage Registry StatsPyPI download stats for the lightning packagehttps://pypistats.org/api/packages/lightning/recentPackage Registry StatsPyPI download stats for the litai Model APIs SDKhttps://pypistats.org/api/packages/litai/recentOfficial ProductPyTorch Lightning framework by Lightning AIhttps://lightning.ai/pytorch-lightning/