More AI vs Codex CLI
More AI vs Codex CLI: custom providers, API-key billing, Ollama/LM Studio support and document workflows. Current facts with a practical comparison protocol.
Updated September 14, 2026
Written by the More AI team. Competitor product documentation reviewed on September 14, 2026; no head-to-head performance benchmark was run. Plans, previews and model availability can change.
Yes, Codex CLI supports BYOK: use its API-key authentication path and usage is billed to the API account instead of included ChatGPT access. Current documentation also covers custom providers and local --oss mode. Switching to More AI is not required solely for those options; the wider OpenAI product also has desktop, IDE and cloud surfaces.
Workflow and cost comparison
| More AI | Codex CLI | |
|---|---|---|
| Interface | Desktop for macOS, Windows and Linux | CLI; the wider product has desktop, IDE and cloud surfaces |
| Model access | Your keys for supported providers; compatible local endpoints | OpenAI access, configurable providers and local OSS mode |
| Cost model | Free desktop; optional cloud subscription, available cloud features free during beta; BYOK usage separate | ChatGPT access or API billing; custom provider/local conditions depend on setup |
| Work scope | Unified Home/Cowork for questions and documents; separate Code for repositories, available from desktop 0.1.50 | The CLI fits repeatable terminal work and code review. More AI’s proposed advantage is the particular way its Home/Cowork and Code workspaces fit your tasks and provider budgeting. It is not exclusive access to a GUI, cloud execution or non-OpenAI models. |
What does Codex CLI cover?
Codex CLI works in a local repository and supports interactive work, review and scripted execution. This comparison names the CLI specifically; it does not claim that the wider Codex and ChatGPT ecosystem lacks graphical or document workflows.
More AI is a free desktop agent with one Home/Cowork for questions, files and documents, and a separate Code workspace for repositories. Unified Home is available in desktop version 0.1.50 and later on macOS, Windows and Linux; earlier Chat conversations remain accessible. More AI is proprietary, not an open-source project.
Models, access and total cost
For OpenAI API billing, use the documented codex login --with-api-key flow with the key supplied through standard input, then check codex login status. Do not paste a real key into a shared command or log. For another endpoint, configure its base URL, authentication and wire API in the documented user-level provider settings. --oss supports Ollama or LM Studio. These options do not guarantee every model or ChatGPT workspace feature is supported.
In More AI, BYOK usage is billed by your selected provider at its API price. The cloud subscription pays for execution and access, not model tokens; available cloud features are free during beta. A signed-in account may separately receive a limited promotional model allowance. Public credit purchase is not open. Count retries, tool calls and long context when estimating a task, not just one reply.
How the work gets done
The CLI fits repeatable terminal work and code review. More AI’s proposed advantage is the particular way its Home/Cowork and Code workspaces fit your tasks and provider budgeting. It is not exclusive access to a GUI, cloud execution or non-OpenAI models.
When to choose Codex CLI
Choose Codex CLI when terminal automation, review commands and your existing OpenAI workflow already meet the requirement. Before switching because of billing or provider restrictions, inspect its current API-key and custom-provider configuration; the restriction may be configuration-specific.
When More AI is worth trying
Try More AI when its supported provider setup and document/repository organization address a recurring task you find awkward elsewhere. Compare the same model where possible, but also test the intended production configuration. A matching model name does not reproduce the agent’s context and tools.
A practical trial before switching
Use a disposable copy of a real task and decide the acceptance criteria before starting. The following is a proposed test, not a claimed benchmark result.
- Run the same small issue from an identical repository snapshot, with an explicit test command and write scope.
- For a local-provider comparison, first verify the runtime, loaded model and tool behavior in each app. Log unsupported protocol or model features separately.
- For a hosted comparison, record whether usage came from a plan or an API key. Compare accepted changes and manual review effort instead of raw completion speed.
- Record app version, model/provider, settings, elapsed time, total API cost, retries and manual fixes. Inspect the final artifact; a completed run alone is not proof of a correct result.
More AI accounts and data handling
An account is optional for supported local desktop BYOK or local-model work. Signed-out work is not synced. After sign-in, supported sync categories start enabled in a new installation and can be disabled individually. Cloud execution is a separate control that starts off.
Local copies do not mean all processing stays on-device. Hosted requests go to the selected provider. AI observability can send bounded prompts, responses, reasoning and tool content by default, including BYOK; replay may see rendered content. Disable AI observability and general telemetry in Privacy as needed. A local model alone does not establish a fully offline workflow.
Frequently asked questions
Can Codex CLI use custom providers, Ollama or LM Studio?
Yes. Current OpenAI documentation describes custom model providers and local --oss mode with Ollama or LM Studio. Actual capability still depends on protocol, model and configuration; More AI should not be presented as uniquely provider-flexible.
Does More AI require an account?
An account is optional for supported local desktop work with your own key or model. Cloud features, supported sync and account-granted model allowances require sign-in.
Is More AI free?
The desktop app is free. BYOK model usage is separate. Available cloud features are temporarily free during beta; cloud is the subscription layer. This does not promise unlimited free tokens.
Does the same model produce the same result in both apps?
No. Context selection, instructions, tools, edit handling and retries affect quality and cost. Compare a completed task with the same model where supported, then test each app with its recommended setup.