# Code By AI

> Code By AI is a unified AI coding platform that routes requests to Claude Code,
> OpenAI Codex and Gemini models through one gateway. One API key serves four
> wire protocols — Anthropic Messages, OpenAI Responses, OpenAI Chat Completions
> and Gemini — at roughly one sixth of the official API price, on one bill. Each
> protocol carries its own model family; the gateway forwards protocols rather
> than translating between them.

- Website: https://www.codebyai.net
- Documentation: https://www.codebyai.net/docs
- Model pricing: https://www.codebyai.net/docs/model-price
- Model catalog: https://www.codebyai.net/models
- Pricing comparison: https://www.codebyai.net/pricing
- API model list endpoint: https://www.codebyai.net/v1/models
- Codex endpoint: https://www.codebyai.net/api/agent (wire_api = "responses")
- Languages: English, Traditional Chinese, French, Korean, Japanese

## What Code By AI provides

- One API key for Claude Code, Codex and Gemini — no separate vendor accounts.
- Desktop agents, IDEs and editor extensions work through the same key: ZCode,
  Qoder, WorkBuddy, Trae, CodeBuddy, Cline and Qwen Code accept the Code By AI
  base URL in their custom provider settings.
- One-command setup for Claude Code, Codex, Gemini CLI, OpenCode, Pi, Qwen Code,
  ZCode, WorkBuddy and CodeBuddy: https://www.codebyai.net/setup.sh (Qoder, Trae and Cline are
  configured in the app; each has a guide under https://www.codebyai.net/docs/agents).
- Token pricing from 1/6 of official list prices, before per-channel discounts.
- Drop-in compatibility: point the official CLI/SDK at the Code By AI base URL
  and keep using the same model names.
- Usage and billing dashboards with per-model token accounting.

## Documentation

- Claude Code Configuration: https://www.codebyai.net/docs/agents/claudecode
- Codex Configuration: https://www.codebyai.net/docs/agents/codex
- Gemini Configuration: https://www.codebyai.net/docs/agents/gemini
- OpenCode Configuration: https://www.codebyai.net/docs/agents/opencode
- Pi Configuration: https://www.codebyai.net/docs/agents/pi
- ZCode Custom Models: Claude & GPT: https://www.codebyai.net/docs/agents/zcode
- Qoder Custom Models: Claude & GPT: https://www.codebyai.net/docs/agents/qoder
- WorkBuddy Custom Models: Claude & GPT: https://www.codebyai.net/docs/agents/workbuddy
- Cline: Claude & GPT via OpenAI-Compatible: https://www.codebyai.net/docs/agents/cline
- Trae Custom Models: Claude & GPT: https://www.codebyai.net/docs/agents/trae
- Qwen Code: Claude & GPT via OpenAI-Compatible: https://www.codebyai.net/docs/agents/qwen-code
- CodeBuddy Custom Models: Claude & GPT: https://www.codebyai.net/docs/agents/codebuddy
- Claude Code Environment Variables: https://www.codebyai.net/docs/agents/environment-variables
- Top Up & Balance: https://www.codebyai.net/docs/billing/topup
- Volume Discount: https://www.codebyai.net/docs/billing/volume-discount
- Install Claude Code, Codex & Gemini CLI: https://www.codebyai.net/docs/getting-started/installation
- Configuration & Top Up: https://www.codebyai.net/docs/getting-started/configuration
- API Usage Overview: https://www.codebyai.net/docs/getting-started/apiusage
- Troubleshooting Common Errors: https://www.codebyai.net/docs/troubleshooting/common-errors

## Supported models and prices

All prices are USD per 1 million tokens and already include the Code By AI
discount. Official list prices are shown struck through on the pricing page.

### Codex

- gpt-5.6-sol: $0.53 input / $0.05 cached input / $2.67 output — per 1M tokens USD
- gpt-5.6-terra (default): $0.33 input / $0.03 cached input / $2.00 output — per 1M tokens USD
- gpt-6-astra: $1.33 input / $0.13 cached input / $6.67 output — per 1M tokens USD
- gpt-6-sol: $0.27 input / $0.03 cached input / $1.33 output — per 1M tokens USD
- gpt-6.1-sol: $0.27 input / $0.01 cached input / $1.33 output — per 1M tokens USD
- gpt-6.1-terra: $0.13 input / $0.0067 cached input / $0.67 output — per 1M tokens USD

### Gemini

- gemini-3.1-pro-preview: $0.20 input / $0.02 cached input / $1.20 output — per 1M tokens USD
- gemini-3.7-flash: $0.10 input / $0.01 cached input / $0.30 output — per 1M tokens USD
- gemini-3.8-flash (default): $0.08 input / $0.0075 cached input / $0.38 output — per 1M tokens USD
- gemini-4-argon: $0.20 input / $0.01 cached input / $1.00 output — per 1M tokens USD

### Claude Code

- claude-fable-5: $2.00 input / $0.20 cached input / $10.00 output — per 1M tokens USD
- claude-fable-5-1: $2.00 input / $0.05 cached input / $10.00 output — per 1M tokens USD
- claude-haiku-4-5-20251001: $0.13 input / $0.01 cached input / $0.67 output — per 1M tokens USD
- claude-opus-4-6: $0.67 input / $0.07 cached input / $3.33 output — per 1M tokens USD
- claude-opus-4-7: $0.67 input / $0.07 cached input / $3.33 output — per 1M tokens USD
- claude-opus-4-8: $0.67 input / $0.07 cached input / $3.33 output — per 1M tokens USD
- claude-opus-5: $0.67 input / $0.07 cached input / $3.33 output — per 1M tokens USD
- claude-opus-5-5: $0.53 input / $0.03 cached input / $2.67 output — per 1M tokens USD
- claude-sonnet-4-6: $0.40 input / $0.04 cached input / $2.00 output — per 1M tokens USD
- claude-sonnet-5 (default): $0.27 input / $0.03 cached input / $1.33 output — per 1M tokens USD
- claude-sonnet-5-5: $0.27 input / $0.01 cached input / $1.33 output — per 1M tokens USD

## Common questions

- Which model is the default? Codex → gpt-5.6-terra; Claude Code → claude-sonnet-5; Gemini → gemini-3.8-flash. Requests that omit `model` fall back to that channel's default.
- How is billing calculated? Per token, per model, using the prices above.
- Which endpoints does the gateway accept? `POST https://www.codebyai.net/api/agent/v1/messages` (Anthropic); `POST https://www.codebyai.net/api/agent/v1/responses` (OpenAI); `POST https://www.codebyai.net/api/agent/v1/chat/completions` (OpenAI); `POST https://www.codebyai.net/api/agent/v1beta/models/{model}:generateContent` (Google). The two OpenAI-format paths accept both the GPT and the Claude family — a `claude-*` model sent there is forwarded to the Claude channel and billed at Claude prices — while the Anthropic-format path serves the Claude family only. A model belonging to neither family (for example `gemini-*`) is rejected with a 400.
- Is there an OpenAI-compatible endpoint? Yes — both `/v1/responses` and `/v1/chat/completions` are served, and `/v1/models` lists the whole catalog. Both the GPT and Claude families are callable through it, so any OpenAI SDK can talk to Claude models without an Anthropic client.