COMPARISON · Legal research
CoCounsel vs Lexis+ with Protégé
Legal research assistants compared on confidentiality and training statements. This page places vendor-published facts side by side. It does not rank the products or state which is better.
| Fact | CoCounsel | Lexis+ with Protégé |
|---|---|---|
| Category | Legal research | Legal research |
| Vendor | Thomson Reuters | LexisNexis |
| Status | Active | Active |
| Price path | Contact sales: No public price was located in the checked vendor source. | Contact sales: No public price was located in the checked vendor source. |
| Confidentiality statement | “Your user content and prompts are not used to train or improve CoCounsel and associated products or LLMs used in Thomson Reuters or third-party output.” | “LexisNexis protects customer data wherever it is stored, sent, or accessed.” |
| Training or data-use statement | No-training commitment: “Thomson Reuters AI third-party partners, such as OpenAI and Google, are contractually prohibited from using any customer data to train their models.” | No-training commitment: “We never use customer data to train AI models and maintain robust data retention and deletion policies.” |
| Firm-size scope | 2-5 | Not stated |
| Named connections | Westlaw, Practical Law | Not stated |
| Data location | Not stated | Not stated |
| Last checked | September 15, 2026 | September 15, 2026 |
Every value above is a dated observation from the vendor’s own published material. Open either tool page for the full evidence ledger and source links.
Editorial assessment, side by side
The rows below are the CounselAtlas editorial desk’s own reading, not vendor statements. They restate what each vendor published and add no claim of its own. Neither column is a rating or a recommendation.
| Assessment | CoCounsel | Lexis+ with Protégé |
|---|---|---|
| Reading the vendor's wording | The vendor publishes both a confidentiality statement and a no-training commitment, which is more than some research tools state. The firm-size language points at the 2-5 band. | The vendor does not publish a firm-size scope or a data-location statement in the checked source, so the data-handling picture is thinner here than on some smaller research tools. |
| What adopting it costs | It is a focused subscription rather than a platform seat, so adopting it does not require leaving an existing research platform. That also means it can sit alongside one, which lowers the switching risk. | If you already subscribe to the underlying LexisNexis platform, this is an incremental decision. If you do not, adopting the AI layer means adopting the whole platform, which is a much larger commitment. |
| Closest alternative | Lexis+ with Protégé — The large-platform option with a different contract shape. This one is a focused subscription; that one is a seat inside a platform. | CoCounsel — The small-firm-focused alternative. This one is a seat inside a platform; that one is a focused subscription. |
Read the CoCounsel record → · Read the Lexis+ with Protégé record →