Diffgram
Open-source AI data store for schemas, BLOBs and predictions with integrated human supervision, data workflows and UI catalog.
Our Verdict
The OSS choice when data sovereignty matters and Label Studio feels too annotation-only.
Pros
- Open-source data store with human review
- Handles schemas, blobs, predictions together
- Self-hostable for private data
Cons
- Setup complexity higher than SaaS alternatives
- Community smaller than Label Studio
- Docs can lag feature pace
Best for: Regulated teams self-hosting the full ML data lifecycle
Not for: Small teams content with Label Studio or hosted annotation tools
When to Use Diffgram
Good fit if you need
- Labeling image, video, and text data for ML training pipelines
- Managing annotation workflows with human review and QA
- Versioning training datasets alongside model experiments
- Running semi-automated labeling with model-assisted suggestions
Lock-in Assessment
Low 5/5
Lock-in Score 5/5
Pricing
Price wrong?Diffgram Pricing
- Pricing Model
- freemium
- Free Tier
- Yes
- Entry Price
- —
- Enterprise Available
- No
- Transparency Score
- —
Beta — estimates may differ from actual pricing
1,000
1001K10K100K1M
Estimated Monthly Cost
$25
Estimated Annual Cost
$300
Estimates are approximate and may not reflect current pricing. Always check the official pricing page.
Project Health
F
Health Score
1.9k 129
Bus Factor
7
Last Commit
1.4 years
Release Freq
61d
Open Issues
486
Issue Response
38d
License
NOASSERTION
Last checked: 2026-04-21
Community Discussion
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