# Flair vs Stanford CoreNLP

| Attribute | Flair | Stanford CoreNLP |
|---|---|---|
| **Vioscale score** | 40.6 (20% (low)) | 44.7 (24% (low)) |
| activity.commits_last_30d | 0 | 0 |
| adoption.dependent_repos | 497 | 7 |
| adoption.github_stars | 14,384 | 10,102 |
| deployment.options | - | `{"self_hosted":true}` |
| description.long | A framework providing pre-built models for natural language processing tasks including entity recognition, sentiment analysis, part-of-speech tagging, and text classification, with multilingual support and specialized biomedical text processing capabilities. | An open-source toolkit that analyzes text to extract linguistic features including word boundaries, grammatical tags, entities, dependency relationships, and semantic properties, supporting eight languages. |
| language.primary | Python | Java |
| license.spdx | - | GPL-3.0 |
| platform.support | - | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-19T17:44:05.951Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://stanfordnlp.github.io/CoreNLP/","retrievedAt":"2026-08-19T16:05:04.600Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | 80 | 92 |
| release.history | `[{"url":"https://github.com/flairNLP/flair/releases/tag/v0.15.1","date":"2025-02-05T14:46:22Z","type":"stable","version":"v0.15.1"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.15.0","date":"2024-12-20T08:57:44Z","type":"stable","version":"v0.15.0"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.14.0","date":"2024-07-25T12:21:58Z","type":"stable","version":"v0.14.0"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.13.1","date":"2023-12-18T09:29:22Z","type":"stable","version":"v0.13.1"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.13.0","date":"2023-10-28T12:19:55Z","type":"stable","version":"v0.13.0"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.12.2","date":"2023-03-30T15:49:56Z","type":"stable","version":"v0.12.2"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.12.1","date":"2023-03-10T15:32:35Z","type":"stable","version":"v0.12.1"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.12","date":"2023-03-06T10:17:28Z","type":"stable","version":"v0.12"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.11","date":"2022-04-10T20:35:57Z","type":"stable","version":"v0.11"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.10","date":"2021-11-18T08:33:59Z","type":"stable","version":"v0.10"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.9","date":"2021-08-29T23:23:01Z","type":"stable","version":"v0.9"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.8","date":"2021-03-05T11:57:03Z","type":"stable","version":"v0.8"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.7","date":"2020-12-01T19:35:00Z","type":"stable","version":"v0.7"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.6.1","date":"2020-09-23T10:40:31Z","type":"stable","version":"v0.6.1"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.6","date":"2020-08-17T13:34:00Z","type":"stable","version":"v0.6"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.5.1","date":"2020-07-05T21:39:00Z","type":"stable","version":"v0.5.1"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.5","date":"2020-05-24T12:00:55Z","type":"stable","version":"v0.5"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.4.5","date":"2020-01-24T16:08:32Z","type":"stable","version":"v0.4.5"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.4.4","date":"2019-10-20T22:22:35Z","type":"stable","version":"v0.4.4"},{"url":"https://github.com/flairNLP/flair/releases/tag/v0.4.3","date":"2019-08-26T18:26:09Z","type":"stable","version":"v0.4.3"}]` | `[{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.10","date":"2025-06-07T20:00:17Z","type":"stable","version":"v4.5.10"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.9","date":"2025-04-07T15:04:13Z","type":"stable","version":"v4.5.9"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.8","date":"2024-12-29T08:15:25Z","type":"stable","version":"v4.5.8"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.7","date":"2024-04-28T05:36:38Z","type":"stable","version":"v4.5.7"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.6","date":"2024-02-01T20:39:32Z","type":"stable","version":"v4.5.6"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.5","date":"2023-09-06T20:46:56Z","type":"stable","version":"v4.5.5"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.4","date":"2023-03-16T01:23:28Z","type":"stable","version":"v4.5.4"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.3","date":"2023-03-11T05:40:56Z","type":"stable","version":"v4.5.3"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.2","date":"2023-03-11T05:32:59Z","type":"stable","version":"v4.5.2"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.1","date":"2022-08-30T04:13:08Z","type":"stable","version":"v4.5.1"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.5.0","date":"2022-07-22T23:21:26Z","type":"stable","version":"v4.5.0"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.4.0","date":"2022-01-25T11:49:35Z","type":"stable","version":"v4.4.0"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.3.2","date":"2021-11-18T22:42:12Z","type":"stable","version":"v4.3.2"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.3.1","date":"2021-10-22T11:28:28Z","type":"stable","version":"v4.3.1"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.3.0","date":"2021-10-06T10:54:38Z","type":"stable","version":"v4.3.0"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.2.2","date":"2021-05-14T21:36:42Z","type":"stable","version":"v4.2.2"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.2.1","date":"2021-05-05T20:58:09Z","type":"stable","version":"v4.2.1"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.2.0","date":"2020-11-17T10:17:53Z","type":"stable","version":"v4.2.0"},{"url":"https://github.com/stanfordnlp/CoreNLP/releases/tag/v4.0.0","date":"2020-05-04T02:47:27Z","type":"stable","version":"v4.0.0"}]` |
| security.scorecard | - | 2.6 |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=flair&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=edu.stanford.nlp%3Astanford-kbp&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (NLP Apis)

| Capability | Flair | Stanford CoreNLP |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Custom model training | - | - |
| Domain specific models | - | - |
| Deployment model | - | - |
| Batch processing | - | - |
| Real time latency | - | - |
| Embeddings endpoint | - | - |
| Data residency EU | - | - |
| Open source | - | - |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T17:36:08.375Z. "-" = undocumented, not absent.*