# Langfuse vs Leonardo AI

> Langfuse: Open-source platform to trace, evaluate and improve LLM applications and agents
> Leonardo AI: AI image and video studio with custom model training and a real-time canvas editor

- Langfuse profile: https://finderatlas.com/tools/langfuse
- Leonardo AI profile: https://finderatlas.com/tools/leonardo-ai
- Comparison page: https://finderatlas.com/compare/langfuse-vs-leonardo-ai
- Last reviewed: November 2026

## Verdict

Langfuse is listed under Developer Tools and Leonardo AI under Image & Visual AI. Both have a free plan or trial. Only Langfuse is available on CLI. Only Leonardo AI is available on iOS and Android.

### Choose Langfuse if

- You want a tool built for production tracing and debugging of LLM apps and agents, prompt versioning, and systematic evaluation on real data.
- MIT-licensed core with free self-hosting, avoiding vendor lock-in.
- Covers tracing, prompt management and evaluation in one platform.

### Choose Leonardo AI if

- You want a tool built for game and concept art.
- Free plan with 150 tokens per day.
- Many first-party and third-party image and video models in one account.

## Pricing

| | Langfuse | Leonardo AI |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | Langfuse | Leonardo AI |
| --- | --- | --- |
| Tracing | Yes | Not listed |
| Evaluation | Yes | Not listed |
| Prompt Management | Yes | Not listed |
| Playground | Yes | Not listed |
| Datasets and Experiments | Yes | Not listed |
| Cost and Latency Dashboards | Yes | Not listed |
| Open-Source Self-Hosting | Yes | Not listed |
| APIs and MCP Servers | Yes | Not listed |
| AI Canvas | Not listed | Yes |
| Multiple models | Not listed | Yes |
| Personal model training | Not listed | Yes |
| Video generation | Not listed | Yes |
| Blueprints | Not listed | Yes |
| Image editing tools | Not listed | Yes |
| Mobile apps | Not listed | Yes |
| API and MCP server | Not listed | Yes |

## Platforms

| Platform | Langfuse | Leonardo AI |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | No | Yes |
| Android | No | Yes |
| API | Yes | Yes |
| Browser Extension | No | No |
| CLI | Yes | No |

## Langfuse strengths

- MIT-licensed core with free self-hosting, avoiding vendor lock-in.
- Covers tracing, prompt management and evaluation in one platform.
- Free Hobby tier with 50k units per month and no credit card required.
- Over 100 integrations, plus OpenTelemetry for languages without a native SDK.
- Core plan at $29/month with unlimited users.

## Langfuse limitations

- Hobby is limited to 2 users and 30 days of data access.
- SOC 2, ISO 27001 and HIPAA support start at the $199/month Pro plan, and SSO and RBAC need a $300/month add-on.
- Audit logs, SCIM and SLAs are restricted to the $2,499/month Enterprise plan.
- Usage-based unit overage adds cost for high-volume tracing.

## Leonardo AI strengths

- Free plan with 150 tokens per day
- Many first-party and third-party image and video models in one account
- Personal model training on paid plans
- AI Canvas for inpainting and outpainting
- Apps for iOS and Android, plus a pay-as-you-go API

## Leonardo AI limitations

- Free generations are public and the daily allowance is small
- Token costs vary by model and settings, so spend is hard to predict
- Unlimited relaxed video generation needs the $60 Ultimate plan
- Official pricing page blocks automated access, so plan details need checking on the site

## FAQ

**Is Langfuse better than Leonardo AI?**

It depends on your workflow. Langfuse is built for production tracing and debugging of LLM apps and agents, prompt versioning, and systematic evaluation on real data. Leonardo AI is built for game and concept art.

**What are the key feature differences between Langfuse and Leonardo AI?**

Langfuse: Open-source platform to trace, evaluate and improve LLM applications and agents. Leonardo AI: AI image and video studio with custom model training and a real-time canvas editor.

**Does Langfuse or Leonardo AI have a free plan?**

Yes, both do. Langfuse is freemium and Leonardo AI is freemium, and each has a free plan or trial.

**Which is cheaper, Langfuse or Leonardo AI?**

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