# Amazon Neptune vs JanusGraph

**Leader by Vioscale score:** JanusGraph

| Attribute | Amazon Neptune | JanusGraph |
|---|---|---|
| **Vioscale score** | 44.9 (56% (medium)) | 52.7 (70% (medium)) |
| activity.commits_last_30d | - | 9 |
| adoption.dependent_repos | - | 250 |
| adoption.github_stars | - | 5,829 |
| deployment.options | `{"cloud":true}` | `{"on_prem":true,"self_hosted":true}` |
| description.long | A cloud-based graph database that scales serverlessly and analyzes relationships across structured and unstructured data. Designed to improve AI application accuracy through integrated GraphRAG capabilities and support for agentic memory tools. | A database system that stores and queries extremely large graphs spread across multiple machines, enabling many users to run complex lookups simultaneously with strong transaction guarantees and support for batch analytics. |
| features.capabilities | `{"workload":"both","deployment":"managed","distributed":"sharded","graph_model":"multi_model","licence_class":"proprietary","vector_search":true,"query_language":"Gremlin, openCypher, SPARQL","replication_ha":true,"full_text_search":"none","standard_support":true,"acid_transactions":"full"}` | `{"storage":"pluggable","workload":"both","deployment":"self_hosted","consistency":"tunable","distributed":"sharded","graph_model":"property_graph","licence_class":"permissive","query_language":"Gremlin","replication_ha":true,"full_text_search":"via_index","standard_support":true,"acid_transactions":"full"}` |
| integrations.count | 2 | 14 |
| integrations.list | `[{"name":"Amazon Bedrock Knowledge Bases"},{"name":"Strands AI Agents SDK"}]` | `[{"name":"Apache Cassandra"},{"name":"Apache HBase"},{"name":"Google Cloud Bigtable"},{"name":"Oracle BerkeleyDB"},{"name":"ScyllaDB"},{"name":"Elasticsearch"},{"name":"Apache Solr"},{"name":"Apache Lucene"},{"name":"Apache Spark"},{"name":"Aerospike"},{"name":"DynamoDB"},{"name":"FoundationDB"},{"name":"Gremlin"},{"name":"Apache TinkerPop"}]` |
| language.primary | - | Java |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":false,"name":"On-demand","summary":"Pay-as-you-go with no commitments","features":["No minimum fees","No upfront commitments","Flexible configuration"],"description":"Pay-as-you-go pricing with no minimum fees or upfront commitments","contactSales":false},{"free":false,"name":"Serverless","summary":"Serverless with automatic scaling","features":["Automatic scaling","No minimum fees","No upfront commitments"],"description":"Automatically scales graph workloads with no minimum fees or upfront commitments","contactSales":false},{"free":false,"name":"Database Savings Plans","summary":"Usage-based savings plan with 1-year commitment","features":["Savings vs. on-demand","1-year commitment"],"commitment":"annual","description":"Flexible pricing model offering savings in exchange for commitment to specific usage over 1-year term","contactSales":false},{"free":false,"name":"Neptune Analytics","summary":"Per m-NCU-hour billing with pause option","features":["Fast analytics on billions of connections","In-memory storage","Optimized graph algorithms","Low-latency queries","Vector search","Pause/resume capability"],"description":"Analytic database engine for fast analytics over graph data. Billed per m-NCU (each m-NCU = 1 GB memory + compute/networking for 1 hour). Pause capability costs 10% of normal compute price.","contactSales":false}],"summary":"Pay-as-you-go pricing with on-demand, serverless, and savings plan options. No minimum fees or upfront commitments for on-demand/serverless.","currency":"USD","freeTier":false,"sourceUrl":"https://aws.amazon.com/neptune/","retrievedAt":"2026-08-01T15:15:07.725Z","billingPeriods":["hour","month","year"]}` | `{"type":"open_source","summary":"Fully open source under Apache 2 license. No commercial licensing required.","freeTier":true,"sourceUrl":"https://janusgraph.org","retrievedAt":"2026-08-14T21:32:49.930Z"}` |
| pricing.free_tier | no | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | unknown | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 74 |
| release.history | - | `[{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.1.0","date":"2024-11-09T01:29:58Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.1","date":"2024-11-08T21:41:28Z","type":"stable","version":"v1.0.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.0","date":"2023-10-22T02:40:57Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.4","date":"2023-10-09T05:14:24Z","type":"stable","version":"v0.6.4"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.0-rc2","date":"2023-02-26T14:20:07Z","type":"prerelease","version":"v1.0.0-rc2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.3","date":"2023-02-20T22:06:55Z","type":"stable","version":"v0.6.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v1.0.0-rc1","date":"2022-12-08T09:15:08Z","type":"prerelease","version":"v1.0.0-rc1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.2","date":"2022-05-31T09:35:37Z","type":"stable","version":"v0.6.2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.1","date":"2022-01-19T12:51:43Z","type":"stable","version":"v0.6.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.6.0","date":"2021-09-03T12:33:53Z","type":"stable","version":"v0.6.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.3","date":"2020-12-25T12:09:56Z","type":"stable","version":"v0.5.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.2","date":"2020-05-06T00:49:42Z","type":"stable","version":"v0.5.2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.1","date":"2020-04-04T17:21:58Z","type":"stable","version":"v0.5.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.5.0","date":"2020-03-12T05:40:36Z","type":"stable","version":"v0.5.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.4.1","date":"2020-01-15T16:40:54Z","type":"stable","version":"v0.4.1"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.3.3","date":"2020-01-14T17:40:44Z","type":"stable","version":"v0.3.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.4.0","date":"2019-07-02T19:27:38Z","type":"stable","version":"v0.4.0"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.3.2","date":"2019-06-17T14:29:03Z","type":"stable","version":"v0.3.2"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.2.3","date":"2019-05-22T01:26:16Z","type":"stable","version":"v0.2.3"},{"url":"https://github.com/JanusGraph/janusgraph/releases/tag/v0.2.2","date":"2018-10-09T18:04:43Z","type":"stable","version":"v0.2.2"}]` |
| reliability.status_page | yes | yes |
| security.disclosure_policy | yes | - |
| security.scorecard | - | 6.5 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.janusgraph%3Ajanusgraph-core&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Graph Databases)

| Capability | Amazon Neptune | JanusGraph |
|---|:--:|:--:|
| **Model** |  |  |
| Graph model | Multi-model | Property graph |
| Query language(s) | Gremlin, openCypher, SPARQL | Gremlin |
| **Transactions** |  |  |
| ACID transactions | Full | Full |
| Consistency model | - | Tunable |
| **Architecture** |  |  |
| Storage | - | Pluggable backend |
| Distributed / scale | Sharded | Sharded |
| Replication / HA | ✓ | ✓ |
| OLTP vs OLAP | Both | Both |
| **Deployment** |  |  |
| Deployment | Managed | Self-hosted |
| **Search** |  |  |
| Full-text search | None | Via index |
| Built-in vector search | ✓ | - |
| **Licensing** |  |  |
| Licence class | Proprietary | Permissive OSS |
| **Portability** |  |  |
| openCypher / TinkerPop standard | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T16:58:36.390Z. "-" = undocumented, not absent.*