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Vellum VS opencode

Compare Vellum VS opencode and see what are their differences

Vellum

Create ebooks for every platform: Kindle, Kobo, Apple Books, and more.

Rating
0 reviews
Promote on VibeVoted
Alternatives Is it good?
opencode

The AI coding agent, built for the terminal.

Rating
0 reviews
Pricing
Open source
To be Vibe Voted
Alternatives Is it good?
Storyloft
The all-in-one AI writing and publishing platform for authors. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, opencode seems to be a lot more popular than Vellum. While we know about 79 links to opencode, we've tracked only 1 mention of Vellum.

social mentions
1 vs 79
Self-Publishing Tools popularity
100% vs 0%
alternatives listed
155 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

Vellum
opencode
Website vellum.pub opencode.ai
Pricing —
Open source
Listed in
e-Books And Digital Publishing Software Design Tools Ebooks Writing Tools +1
AI Developer Tools Coding Code Autocomplete +1

Features and specs

What each product offers, as listed by its team.

Vellum 5 features
opencode 0 features
  • User-Friendly Interface
    Vellum offers a clean and intuitive design interface that makes it easy for authors to format and publish their ebooks without a steep learning curve.
  • High-Quality Output
    The software produces professional-looking ebooks with elegant formatting and styling, which enhances the appearance of the published work.
  • Multi-format Support
    Vellum allows users to create ebooks in multiple formats, such as ePub and Kindle, enabling distribution across various platforms like Amazon KDP, Apple Books, and more.
  • Customizable Styles
    Authors can customize the look of their ebooks with various styles and layout options to suit their personal tastes and branding.
  • Time-Saving Features
    Automated features like chapter creation and page break insertion save authors time compared to manual formatting.

Possible disadvantages

  • Mac-Only Software
    Vellum is only available for macOS, which limits access for authors who use Windows or other operating systems.
  • High Cost
    The one-time purchase cost of Vellum can be high for independent authors, especially for those who only plan to publish a few books.
  • Limited Editing Tools
    Vellum is primarily a formatting tool and offers limited text editing capabilities, which means users may need other software for comprehensive editing.
  • No Built-in Distribution
    While Vellum facilitates the creation of ebooks, it does not provide built-in distribution or publishing services, requiring authors to handle this separately.
  • Internet Activation Required
    Users need to have an internet connection for software activation and certain updates, which might be inconvenient if connectivity is an issue.

No features have been listed yet.

Analysis

An editorial look at what each product does well and who it suits.

Vellum
opencode

No analysis of Vellum yet.

Overall verdict

  • OpenCode is a solid open-source AI coding assistant that brings terminal-native, model-agnostic development workflows to developers who value flexibility and control over their tooling.

Why this product is good

  • Open-source and transparent, allowing developers to inspect, modify, and self-host the tool
  • Model-agnostic design lets you use various LLM providers rather than being locked into a single vendor
  • Terminal-native workflow integrates smoothly into existing developer environments
  • Active development and community support keep the tool evolving with new features
  • Can help automate coding tasks, refactoring, and code understanding directly from the command line

Recommended for

  • Developers who prefer command-line and terminal-based workflows
  • Teams and individuals wanting flexibility to choose their own AI model providers
  • Open-source enthusiasts who value transparency and self-hosting options
  • Engineers looking to automate repetitive coding tasks and speed up development
  • Privacy-conscious users who want more control over their data and tooling

Videos

Walkthroughs and reviews on video.

Vellum 6 videos + Add
opencode 3 videos + Add

Book Cover Art & Interiors - Review of Vellum & Book Design Template

More videos

  • - How to Use Vellum
  • - Beautiful Ebooks with Vellum
  • - DANG this is a GOOD Roguelike! (Vellum Overview)
  • - Vellum Review: Should You Use It For Book Design?
  • - Book Interior Design - Vellum Review

OpenCode: FASTEST AI Coder + Opensource! BYE Gemini CLI & ClaudeCode!

More videos

  • - OpenCode: The ULTIMATE AI Coding Agent (By SST)
  • - FREE OpenCode SST Beats Google Gemini CLI, Claude Code, & Codex?! Open Source AI Coding CLI

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Vellum
opencode
100% 100%
Self-Publishing Tools
0% 0%
0% 0%
Developer Tools
100% 100%
100% 100%
Writing Tools
0% 0%
0% 0%
AI
100% 100%

User comments

Share your experience with using Vellum and opencode. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Vellum 1 mention
opencode 79 mentions
  • Apple Creator Studio
    In general, Word will allow you to control features like footnotes/endnotes, tables of figures, etc, much better than Pages ever will. If it's mostly literature, you can use something like Vellum (https://vellum.pub/) I don't have a list... - Source: Hacker News / 10 months ago
  • OpenRouter's Free Model APIs in 2026: Working With Request Limits Instead of Token Caps
    Coding agents like OpenCode ship OpenRouter as a built-in provider, so you can point them at the free tier without writing a custom integration. The same request caps apply, though, so an agent that makes many small calls will still... - Source: dev.to / 10 days ago
  • I gave 9 free AI coding models the same real bug. Here is what happened.
    Agent: OpenCode, run headless with opencode run, one model per run. - Source: dev.to / 9 days ago
  • Handover: I made three AI agents run an exit interview in team chat
    I used OpenCode with Kimi K2.6 on Nebius Token Factory. Any OpenAI-compatible endpoint works the same way. This is ~/.config/opencode/opencode.json:. - Source: dev.to / 9 days ago

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Alternatives to Vellum and opencode

When comparing Vellum and opencode, you can also consider the following products.

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