Ultravox vs OpenHands
A detailed comparison to help you choose between Ultravox and OpenHands.
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Verdict: OpenHands wins
OpenHands scores 4.2/5, edging out Ultravox at 3.8/5. Engineering teams that want autonomous coding agents they can host, govern, and swap models or agent implementations behind — without committing to a closed vendor.
Ultravox Real-time, speech-native voice AI | OpenHands Open-source AI software development agent | |
|---|---|---|
| Rating | 3.8 (1 review) | 4.2 (1 review) |
| Pricing Model | paid | free |
| Starting Price | From $49/mo | Free |
| Best For | Engineering teams building latency-sensitive voice agents who want a speech-native conversation layer with clean APIs rather than a stitched cascade. | Engineering teams that want autonomous coding agents they can host, govern, and swap models or agent implementations behind — without committing to a closed vendor. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | team featuresapi access | free tieropen sourcebyok |
| Visit Ultravox → | Visit OpenHands → |
Ultravox
Pros
- + Speech-native model handled interruptions and overlaps without the cascade failure I have seen in STT/LLM/TTS stacks
- + Mid-call tool execution in my test paused and resumed speech without dead-air gaps
- + Transparent metered pricing: 30 free minutes then $0.05/min, verified by third-party price tracking in August 2026
- + Open model weights (fixie-ai/ultravox) allow self-hosting for teams that need model-level control
- + RAG corpora and custom voices are configuration steps, not build steps
Cons
- - Acquired by Inworld AI on 1 October 2026 — continuity is promised but the roadmap is unwritten
- - No free plan beyond the 30-minute allowance; sustained experimentation is paid
- - Developer-only product: no visual agent studio, no templates for non-engineers
- - Pay-as-you-go caps at 5 concurrent calls, which queued my parallel test calls
- - The hosted platform (scheduler, telephony, voice management) is where the value sits, so open weights are not a free substitute
OpenHands
Pros
- + MIT-licensed core with ~90,700 GitHub stars and 300+ contributors is the most credible open platform in the category
- + Agent Canvas runs OpenHands and third-party agents (Claude Code, Codex, Gemini CLI, any ACP agent) behind one control center — I switched backends without changing workflows
- + Sandboxed Docker execution with documented security hardening kept the agent's blast radius bounded in my local setup
- + Automations (scheduled and webhook-triggered, publishing to Slack/GitHub/Linear) worked as one configuration surface rather than bespoke CI jobs
- + Bring-your-own-LLM design keeps the platform provider-neutral on models and pricing
Cons
- - Self-hosting the free tier means your team owns hardening, upgrades, and incident response with community support only
- - Teams at $499/month for up to 10 users is capped at 5,000 sessions per month — heavy automation shops must price that out
- - Token costs for your chosen model are on top of any subscription and vary widely by task
- - The platform spans four repositories; contributors must learn the boundaries before touching anything
- - Agent Canvas is still labeled beta in the repository badges even as the surrounding platform matures
Frequently Asked Questions
Which is better, Ultravox or OpenHands?▼
OpenHands scores higher at 4.2/5 vs 3.8/5 for Ultravox, making it the better-rated option in our comparison.
What is the difference between Ultravox and OpenHands?▼
Ultravox: Ultravox, formerly Fixie, is a real-time voice AI infrastructure layer for building fast, natural-sounding voice agents. OpenHands: OpenHands is an open-source AI software-development agent that reads a repository, writes and runs code and iterates on a task the way a developer would.
Is Ultravox or OpenHands more affordable?▼
Ultravox starts at €49/mo, OpenHands starts at €0/mo. Check the comparison table above for current pricing.
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