--- title: "redis vs gpl" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/redis-redis-vs-ukplab-gpl" tools: ["redis-redis", "ukplab-gpl"] --- # redis vs gpl *GraphCanon updated Jul 11, 2026* ## Verdict Pick redis when redis is primarily C; gpl is Python; pick gpl when gpl is primarily Python; redis is C. [redis](http://redis.io) reports 75k GitHub stars, 25k forks, and 2.9k open issues, last pushed Jul 10, 2026. [gpl](https://github.com/UKPLab/gpl) has 343 stars, 38 forks, and 26 open issues, last pushed Jul 6, 2023. Figures are from public GitHub metadata via [redis's repository](https://github.com/redis/redis) and [gpl's repository](https://github.com/UKPLab/gpl). | | [redis](/tools/redis-redis.md) | [gpl](/tools/ukplab-gpl.md) | | --- | --- | --- | | Tagline | Redis is a preferred cache, data structure server, and document & vector query engine for real-time applications. | Powerful unsupervised domain adaptation method for dense retrieval. Requires only unlabeled corpus and yields massive improvement: "GPL: Generative Pseudo Labeling for Unsupervised Domain Adaptation o | | Stars | 75,394 | 343 | | Forks | 24,718 | 38 | | Open issues | 2,867 | 26 | | Language | C | Python | | Adopt for | Redis is an in-memory database designed as a versatile cache and data structure store with advanced features such as JSON operations and vector searches, making it suitable for real-time applications. | - | | Persona | - | - | | Runtime | - | - | | License | Other | Apache-2.0 | | Categories | Data & Retrieval, Vector Databases | Data & Retrieval, Model Training, Vector Databases | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [redis](/tools/redis-redis.md) | [gpl](/tools/ukplab-gpl.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Dormant (18%) | | Days since push | 0d | 1101d | | Open issues (now) | 2.9k | 26 | | Full report | [trust report](/tools/redis-redis/trust.md) | [trust report](/tools/ukplab-gpl/trust.md) | ## Decision facts: redis - **Adopt for:** Redis is an in-memory database designed as a versatile cache and data structure store with advanced features such as JSON operations and vector searches, making it suitable for real-time applications. ## Choose when ### Choose redis if… - redis is primarily C; gpl is Python. - License: redis is Other, gpl is Apache-2.0. - Tags unique to redis: cache, caching, database, in-memory. - You need high-speed access to frequently used data due to Redis's in-memory nature. ### Choose gpl if… - gpl is primarily Python; redis is C. - License: gpl is Apache-2.0, redis is Other. - Tags unique to gpl: bert, domain-adaptation, information-retrieval, nlp. - Also covers Model Training. ## When NOT to use redis - Your project has limited memory resources since Redis relies on in-memory storage, which could lead to high costs or operational challenges with large datasets. - You prioritize persistence over speed; while Redis offers persistence options, its primary design is for real-time access and not robust disk-based backup solutions like traditional SQL databases. - Your application workload does not benefit from the fast read/write capabilities and rich data structure support offered by Redis, possibly implying that a less specialized database would suffice. ## When NOT to use gpl - Last GitHub push was 1102 days ago (dormant maintenance, Jul 6, 2023). Validate activity before betting a new project on gpl. - Data & Retrieval: Skip a heavy ingestion framework when your corpus is small and static; a script plus the embedding API is enough. - Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge. - Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ## Common questions ### What is the difference between redis and gpl? redis: Redis is a preferred cache, data structure server, and document & vector query engine for real-time applications.. gpl: Powerful unsupervised domain adaptation method for dense retrieval. Requires only unlabeled corpus and yields massive improvement: "GPL: Generative Pseudo Labeling for Unsupervised Domain Adaptation o. See the comparison table for live GitHub stats and shared categories. ### When should I choose redis over gpl? Choose redis over gpl when redis is primarily C; gpl is Python; License: redis is Other, gpl is Apache-2.0; Tags unique to redis: cache, caching, database, in-memory; You need high-speed access to frequently used data due to Redis's in-memory nature. ### When should I choose gpl over redis? Choose gpl over redis when gpl is primarily Python; redis is C; License: gpl is Apache-2.0, redis is Other; Tags unique to gpl: bert, domain-adaptation, information-retrieval, nlp; Also covers Model Training. ### When should I avoid redis? Your project has limited memory resources since Redis relies on in-memory storage, which could lead to high costs or operational challenges with large datasets. You prioritize persistence over speed; while Redis offers persistence options, its primary design is for real-time access and not robust disk-based backup solutions like traditional SQL databases. Your application workload does not benefit from the fast read/write capabilities and rich data structure support offered by Redis, possibly implying that a less specialized database would suffice. ### When should I avoid gpl? Last GitHub push was 1102 days ago (dormant maintenance, Jul 6, 2023). Validate activity before betting a new project on gpl. Data & Retrieval: Skip a heavy ingestion framework when your corpus is small and static; a script plus the embedding API is enough. Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ### Is redis or gpl more popular on GitHub? redis has more GitHub stars (75,394 vs 343). Stars measure visibility, not whether either tool fits your constraints. ### Are redis and gpl open source? Yes - both are open-source projects on GitHub (redis: Other, gpl: Apache-2.0). ### Where can I find alternatives to redis or gpl? GraphCanon lists graph-backed alternatives at [redis alternatives](/tools/redis-redis/alternatives) and [gpl alternatives](/tools/ukplab-gpl/alternatives) ([redis markdown twin](/tools/redis-redis/alternatives.md), [gpl markdown twin](/tools/ukplab-gpl/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/redis-redis-vs-ukplab-gpl.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, redis or gpl? redis: Very active. gpl: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for redis and gpl? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [redis trust report](/tools/redis-redis/trust); [gpl trust report](/tools/ukplab-gpl/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=redis-redis`](/api/graphcanon/graph?tool=redis-redis) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_