# OpenAI Codex vs Opera Neon

> OpenAI Codex: OpenAI's coding agent that writes, reviews and runs code from terminal, IDE, desktop or cloud
> Opera Neon: Agentic AI browser that researches, navigates and completes web tasks for you

- OpenAI Codex profile: https://finderatlas.com/tools/openai-codex
- Opera Neon profile: https://finderatlas.com/tools/opera-neon
- Comparison page: https://finderatlas.com/compare/openai-codex-vs-opera-neon
- Last reviewed: October 2026

## Verdict

OpenAI Codex is listed under Coding AI and Opera Neon under AI Assistants. OpenAI Codex scores higher in FinderAtlas's editorial review (8.5 vs 7.5 out of 10), led by ease of use and value for money. Both have a free plan or trial. Only OpenAI Codex is available on Web, Linux and CLI and offers an API.

### Choose OpenAI Codex if

- You want a tool built for delegating coding tasks to an agent.
- Included with ChatGPT plans, with a free tier and an $8 Go tier.
- Open-source CLI under the Apache-2.0 license.

### Choose Opera Neon if

- You want a tool built for Multi-tab research, delegating repetitive browser tasks, building quick web outputs, connecting external AI agents to a live browser session.
- Combines chat, browser actions, research and content creation in one browser rather than a separate extension.
- Neon Do shows its plan and actions in real time and can be paused or taken over.

## Pricing

| | OpenAI Codex | Opera Neon |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | OpenAI Codex | Opera Neon |
| --- | --- | --- |
| Codex CLI | Yes | Not listed |
| IDE extension | Yes | Not listed |
| Desktop app | Yes | Not listed |
| Cloud tasks | Yes | Not listed |
| Code review | Yes | Not listed |
| Non-interactive mode | Yes | Not listed |
| MCP, skills and plugins | Yes | Not listed |
| Subagents and web search | Yes | Not listed |
| Session resume and images | Yes | Not listed |
| Mobile remote control | Yes | Not listed |
| Neon Do | Not listed | Yes |
| Neon Chat | Not listed | Yes |
| Neon Make | Not listed | Yes |
| Research Agents | Not listed | Yes |
| Tasks | Not listed | Yes |
| Neon Cards | Not listed | Yes |
| MCP Connector and CLI | Not listed | Yes |
| Memory and Scheduled Tasks | Not listed | Yes |
| Built-in Browser Tools | Not listed | Yes |

## Platforms

| Platform | OpenAI Codex | Opera Neon |
| --- | --- | --- |
| Web | Yes | No |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | No | No |
| Android | No | No |
| API | Yes | No |
| Browser Extension | No | No |
| Linux | Yes | No |
| CLI | Yes | No |
| VS Code Extension | Yes | No |
| JetBrains Plugin | Yes | No |

## OpenAI Codex strengths

- Included with ChatGPT plans, with a free tier and an $8 Go tier
- Open-source CLI under the Apache-2.0 license
- Available in the terminal, VS Code-based editors, the ChatGPT desktop app and the cloud
- Supports MCP, skills, plugins and subagents
- API-key option lets teams pay at API rates instead of a subscription

## OpenAI Codex limitations

- Plus has message limits per five hours that vary widely by model
- Cloud features are not available on the API Key plan
- Higher usage needs Pro, which starts at $100 per month
- Free and Go plans offer only GPT-6 Luna in the desktop app

## Opera Neon strengths

- Combines chat, browser actions, research and content creation in one browser rather than a separate extension.
- Neon Do shows its plan and actions in real time and can be paused or taken over.
- Wide model choice across OpenAI, Anthropic, Google, xAI and open-weight models on the Standard plan.
- MCP connector and CLI let external agents such as Claude Code or n8n use a live browser session.
- Credentials, passwords and card details are stated to stay on the device, and Opera says it does not train on user data.
- Free VPN and ad blocker are included in the browser.

## Opera Neon limitations

- Full agentic features need the $19.90 per month Standard plan, higher than many AI add-ons.
- Windows and macOS only; no Linux, iOS or Android version yet.
- Neon Do uses cloud LLMs to plan, and page content is sent to Opera and OpenAI servers with 365-day retention.
- Opera itself calls Neon an experimental agentic browser, so behaviour and plan limits may change.

## FAQ

**Is OpenAI Codex better than Opera Neon?**

It depends on your workflow. OpenAI Codex is built for delegating coding tasks to an agent. Opera Neon is built for Multi-tab research, delegating repetitive browser tasks, building quick web outputs, connecting external AI agents to a live browser session.

**What are the key feature differences between OpenAI Codex and Opera Neon?**

OpenAI Codex: OpenAI's coding agent that writes, reviews and runs code from terminal, IDE, desktop or cloud. Opera Neon: Agentic AI browser that researches, navigates and completes web tasks for you.

**Does OpenAI Codex or Opera Neon have a free plan?**

Yes, both do. OpenAI Codex is freemium and Opera Neon is freemium, and each has a free plan or trial.

**Which is cheaper, OpenAI Codex or Opera Neon?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.