opencode VS Retell AI

Compare opencode VS Retell AI and see what are their differences

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Lensmor is an AI-native Event Intelligence and GTM Signal platform that empowers B2B enterprises to transform global exhibition attendees into high-intent sales opportunities through real-time data analysis. featured

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opencode

The AI coding agent, built for the terminal.

Retell AI

API that enables developers to build human-like voice agents

Landing page //
2026-04-28

Landing page //
2026-06-13

opencode

Website: opencode.ai
Pricing URL: -
$ Details

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Retell AI

Website: retellai.com
Pricing URL: Official Retell AI Pricing
$ Details: -

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opencode features and specs

No features have been listed yet.

Retell AI features and specs

Enhanced productivity
Retell AI automates the process of summarizing and extracting key points from lengthy content, saving significant time and allowing users to focus on other important tasks.
Accuracy
Utilizes advanced AI algorithms to ensure high accuracy in content summarization, providing reliable and precise information that users can trust.
Accessibility
Offers summaries in various formats, making it convenient for users with different preferences and needs, such as audio, text, or visual summaries.
Integration
Easily integrates with popular platforms and tools, which enhances workflow and does not require users to adapt to a completely new system.
Language support
Offers support for multiple languages, making it ideal for users operating in multilingual environments.

Possible disadvantages of Retell AI

Cost
Pricing might be a barrier for some users, particularly small businesses or individual users with limited budgets.
Dependency on technology
Users might become overly reliant on AI-generated summaries, which could reduce their engagement with full-length content and critical thinking skills.
Possible inaccuracies
Despite high accuracy, there is always a possibility of errors or misinterpretations that could lead to misinformation if not properly reviewed by users.
Privacy concerns
Processing sensitive information through AI services raises privacy concerns, especially if confidentiality and data protection policies are unclear or insufficient.
Limited domain expertise
The AI might struggle with highly specialized or technical content, which could lead to inadequate summarization or misunderstanding of complex topics.

Analysis of opencode

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

opencode videos

+ Add

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

Retell AI videos

+ Add

Retell AI - API That Turns Your LLM Into A Human-Like Voice Agent

Category Popularity

0-100% (relative to opencode and Retell AI)

opencode

Retell AI

Developer Tools

100 100%

Developer Tools

0% 0

43 43%

57% 57

Voice Assistant

0 0%

Voice Assistant

100% 100

Coding

100 100%

Coding

0% 0

User comments

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

Reviews

These are some of the external sources and on-site user reviews we've used to compare opencode and Retell AI

opencode Reviews

We have no reviews of opencode yet.
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Retell AI Reviews

I Tested The 10 Best AI Voice Assistants (ONE is the Winner)

Retell AI is not a ready-to-use voice assistant like Alexa or Gemini. It is a builder you can use to develop your own custom AI voice assistant for enterprises and consumer needs.

Source: www.mirrorfly.com

Top 10 AI Voice Agent Development Companies [2026]

Retell AI is a popular Silicon Valley startup that offers a no-code platform to businesses for building their own AI phone agents. Retell AI is also consider as top voice ai company offering custom deployments.

Source: www.mirrorfly.com

10 Best Custom AI Voice Agents for 2026: My Hands-On Review

Retell AI is a fully compliant platform designed to make AI voice deployment easy. With scalability and multilingual support.

Source: www.trustfirms.com

Social recommendations and mentions

Based on our record, opencode seems to be more popular. It has been mentiond 67 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

opencode mentions (67)

ZCode: Claude Code from the Makers of GLM
Https://opencode.ai/ OpenCode was the first agent harness I used, and I have always like it. You can configure a wide variety of providers, but it's open source and has a number of core contributors. The other opinionated option is Pi (the Pi agent harness). This is a great lightweight option and also supports a number of providers. You can also use local model servers. - Source: Hacker News / 4 days ago
AI for Less Popular Programming Languages
OpenCode with GLM 5.2 wrote custom Emacs Lisp to pinpoint within the file where the missing or extra bracket could be. It rewrote the custom code to check various parts of the file. Each of those is a tool use and many, many tokens burned. The next step is to turn those custom scripts written by the AI agent into a tool to speed up the process, or a skill that shows how to use other tools to speed up the process. - Source: dev.to / 7 days ago
How to Run Reliable Local LLM Agents on an RTX 3090: A Benchmark (5 Models, Priced in Watts)
I gave GLM-4.5-Air (106B, open weights) 12 coding tasks through opencode on my RTX 3090. It scored 0% — never edited a single file. - Source: dev.to / 8 days ago
The head chef model of AI collaboration
Set up your stations. I work in two Ghostty terminals. The left side is for planning and viewing, the right for synchronous agents running through OpenCode. - Source: dev.to / 16 days ago
Testing GLM-5.2 on OpenCode: I'm impressed!
If you want to try it yourself: grab OpenCode, point it at OpenRouter, select GLM 5.2, and give it a real task instead of a benchmark. The z.ai docs have the rest of the details. - Source: dev.to / 17 days ago

Retell AI mentions (0)

We have not tracked any mentions of Retell AI yet. Tracking of Retell AI recommendations started around Mar 2024.

What are some alternatives?

When comparing opencode and Retell AI, you can also consider the following products

Claude Code - Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebase—no more context switching, just breakthrough results.

Vapi - Voice AI Infrastructure for the Internet

Cursor - The AI-first Code Editor. Build software faster in an editor designed for pair-programming with AI.

Bland AI - An AI Phone Calling API

Google Antigravity - Google Antigravity - Build the new way

Voiceflow - Build voice apps in your browser without coding

Claude Code vs opencode

Claude Code vs Retell AI