NanoGPT
Standard auto-routed text model API usage is billed at list prices with no markup (manually pinned providers add 5%; BYOK requests are instead billed at 5% of the normal model cost, since you pay your own provider directly). No percentage deposit fees. Exact cost is returned on chat completion and Responses API responses.
Website: https://nano-gpt.com/
Pricing: https://nano-gpt.com/pricing
Full agent reference: https://nano-gpt.com/llms-full.txt
OpenAI Models API: https://nano-gpt.com/api/v1/models
Public Models Snapshot: https://nano-gpt.com/api/models
Embeddings Models API: https://nano-gpt.com/api/v1/embedding-models
Image Models API: https://nano-gpt.com/api/v1/image-models
Video Models API: https://nano-gpt.com/api/v1/video-models
Audio Models API: https://nano-gpt.com/api/v1/audio-models
OpenAPI: https://nano-gpt.com/openapi.json