OpenAI Codex 定價：CLI 在 2026 年的實際費用
OpenAI Codex CLI is a free, open-source tool — but it sends every prompt to the OpenAI API, which charges per token. One image compression task burned 7,675 tokens: between 3 and 11 cents. The default model, codex-mini-latest, costs $1.50 per million input tokens and $6.00 per million output tokens. Pointing Codex at RunAPI instead cuts those rates by 50%, with no other changes to your workflow.
OpenAI Codex 費用是多少？
The Codex CLI itself is free to download and run. The cost comes from API calls: every prompt, file read, and code generation goes to the OpenAI API. The default model is codex-mini-latest, priced at $1.50/1M input tokens and $6.00/1M output tokens through OpenAI directly. A moderate coding session — roughly 8M input and 2M output tokens per month — runs about $24 with OpenAI. The same usage through RunAPI costs $12. RunAPI is OpenAI-compatible, so you change two environment variables and nothing else. Tip: run /compact during long sessions to free up context and stop burning tokens on conversation history.
CLI 本身沒有訂閱費。您只需為每次編程會話中消耗的 API token 付費。
codex-mini-latest 輸入每 1M token 費用 $1.50，輸出每 1M token 費用 $6.00，透過 OpenAI API 計費。
RunAPI 以 50% 折扣提供相同模型。設定兩個環境變數，Codex 即自動路由到 RunAPI。
只為您使用的部分付費。無月費。無最低消費。停止編程的那一刻，帳單也隨之停止。
什麼算作一個 token？
Every message Codex sends to the API includes your prompt, the full context of files it has read, any tool results, and conversation history. That combined input is tokenized (roughly 750 words per 1,000 tokens). The model's response — edited code, explanations, next steps — counts as output tokens. Both directions are billed separately. Codex caches nothing between sessions, so a fresh session re-reads the same files and bills that context again. One real example from a developer testing image compression — a single 5 MB file task burned 7,675 tokens, or roughly 3 to 11 cents. Not very cheap for one file, but most coding sessions stay well under a dollar each.
codex-mini-latest 定價：OpenAI 對比 RunAPI
價格以美元計，每百萬 token。RunAPI 費率為 OpenAI 定價的 50%。
一個典型月份的費用是多少？
基於 codex-mini-latest，OpenAI 每 1M token 收費 $1.50/$6.00，RunAPI 收費 $0.75/$3.00。