LLM billing follows the vendor’s input and output pricing model, then applies the TTAPI channel discount where applicable. Supported models change over time, so this page focuses on the main platforms and pricing rules rather than every single version.
Pricing rules
| Platform | Common models | Billing rule |
|---|---|---|
| OpenAI | gpt-4o gpt-4o-mini gpt-4.1 gpt-4.1-mini o1 o3-mini gpt-5 gpt-5-mini gpt-5-nano gpt-5-chat-latest gpt-5.1 gpt-5.2 gpt-5-nano-2025-08-07 gpt-5-pro gpt-5.2-pro gpt-5.4-mini gpt-5.4-nano | Official list price |
| Claude | claude-sonnet-4-20250514 claude-opus-4-20250514 claude-opus-4-1-20250805 claude-haiku-4-5-20251001 claude-sonnet-4-5-20250929 claude-opus-4-5-20251101 claude-opus-4-5 claude-sonnet-4-5 claude-haiku-4-5 claude-opus-4-6 claude-sonnet-4-6 | 10% off official pricing |
| Gemini | gemini-2.5-flash gemini-2.5-pro gemini-3-pro gemini-3-pro-preview gemini-3-flash-preview gemini-3.1-pro-preview | 40% off official pricing |
| X.AI | grok-3 grok-3-fast grok-3-mini grok-3-mini-fast grok-4 grok-4-fast grok-4-1-fast-reasoning grok-4-1-fast-non-reasoning | 20% off official pricing |