ChatGPT vs Qwen for Legal

ChatGPT wins decisively for legal work, offering web search for legal research and document uploads for contract analysis—capabilities Qwen lacks. ChatGPT's stronger benchmarks on reasoning tasks (GPQA 92.8% vs 88.4%) matter when analyzing complex legal documents and arguments. Qwen's cost advantage is appealing but insufficient to overcome these missing features for professional legal practice.

Head-to-Head for Legal

Document Analysis & File Review

ChatGPT

ChatGPT

File uploads and tool integration

Qwen

Strong but limited file handling

Legal Research & Case Law Access

ChatGPT

ChatGPT

Web search enables real-time research

Qwen

Knowledge cutoff limitations

Data Privacy for Confidential Work

Qwen

ChatGPT

Enterprise data handling concerns

Qwen

Open source on-premises option

Cost per 1M Tokens

Qwen

ChatGPT

$2.50 input, $15 output

Qwen

$0.40 input, $2.40 output

Reasoning for Complex Analysis

ChatGPT

ChatGPT

Superior reasoning (92.8% GPQA)

Qwen

Competitive reasoning (88.4% GPQA)

See Them Answer a Legal Question

We asked both models the same legal-focused prompt.

Draft a non-disclosure agreement clause that protects both parties' trade secrets while allowing for necessary disclosures during a joint venture, and explain the key legal considerations.

GPT-5.4

Draft a non-disclosure agreement clause that protects both parties' trade secrets while allowing for necessary disclosures during a joint venture, and explain the key legal considerations.

Below is a balanced mutual NDA clause aimed at protecting both parties’ trade secrets while still allowing disclosures reasonably necessary to carry out a joint venture. After the clause, I explain the main legal issues to consider.

Sample Clause: Confidentiality and Trade Secrets

Confidentiality and Trade Secrets

  1. Definition of Confidential Information.
    For purposes of this Agreement, “Confidential Information” means any non-public information disclosed by either Party (“Disclosing Party”) to the other Party (“Receiving Party”), whether disclosed before or after the Effective Date, in written, oral, visual, electronic, or other form, that is designated as confidential or that reasonably should be understood, given the nature of the information or the circumstances of disclosure, to be confidential. Confidential Information includes, without limitation, trade secrets, know-how, formulas, methods, processes, designs, specifications, software, source code, business plans, financial information, customer and supplier information, pricing, marketing strategies, research and development, and all analyses, compilations, studies, notes, and other materials prepared by or for the Receiving Party that contain, reflect, or are derived from such information.

  2. Exclusions.
    Confidential Information does not include information that the Receiving Party can demonstrate by contemporaneous written records:
    (a) is or becomes publicly available through no breach of this Agreement or other wrongful act;
    (b) was lawfully known to the Receiving Party without restriction on use or disclosure prior to receipt from the Disclosing Party;
    (c) is lawfully received from a third party without breach of any duty of confidentiality; or
    (d) is independently developed by the Receiving Party without use of or reference to the Disclosing Party’s Confidential Information.

  3. Use and Protection.
    The Receiving Party shall:
    (a) use the Disclosing Party’s Confidential Information solely for the purpose of evaluating, negotiating, establishing, or performing the joint venture and related transactions contemplated by this Agreement (“Permitted Purpose”);
    (b) protect such Confidential Information using at least the same degree of care it uses to protect its own confidential information of a similar nature, and in no event less than reasonable care;
    (c) not disclose such Confidential Information to any person except as expressly permitted under this Agreement; and
    (d) not reverse engineer, disassemble, decompile, analyze, or otherwise attempt to derive the composition, structure, underlying ideas, algorithms, or trade secret aspects of any Confidential Information, prototypes, samples, software, or other tangible embodiments disclosed by the Disclosing Party, except to the extent such restriction is prohibited by applicable law.

  4. Permitted Disclosures for the Joint Venture.
    The Receiving Party may disclose Confidential Information only to its and its affiliates’ directors, officers, employees, legal counsel, accountants, financing sources, prospective investors, subcontractors, consultants, and advisors (collectively, “Representatives”) who have a strict need to know such information for the Permitted Purpose, provided that such Representatives are bound by written confidentiality obligations no less protective than those set forth herein. The Receiving Party remains responsible for any breach of this Agreement by its Representatives.

  5. Legally Required Disclosures.
    If the Receiving Party is required by law, regulation, stock exchange rule, subpoena, court order, or governmental request to disclose any Confidential Information, it may do so only to the minimum extent legally required, and, to the extent legally permitted, shall provide the Disclosing Party with prompt written notice sufficient to allow the Disclosing Party to seek a protective order or other appropriate remedy. The Receiving Party shall reasonably cooperate, at the Disclosing Party’s expense, in any effort to limit or prevent such disclosure. Information disclosed pursuant to this Section shall remain Confidential Information for all other purposes.

  6. Trade Secrets.
    Each Party acknowledges that the other Party’s trade secrets are valuable proprietary assets. With respect to any information constituting a trade secret under applicable law, the Receiving Party’s obligations under this Agreement shall continue for so long as such information remains a trade secret under applicable law, notwithstanding any other expiration or termination provision of this Agreement.

  7. No License or Transfer of Rights.
    Except for the limited right to use Confidential Information for the Permitted Purpose, no license, assignment, transfer, or other right, whether express, implied, by estoppel, or otherwise, is granted to the Receiving Party under any intellectual property right or other proprietary right of the Disclosing Party. All Confidential Information remains the property of the Disclosing Party.

  8. Return or Destruction.
    Upon written request of the Disclosing Party or upon termination of discussions or the joint venture, the Receiving Party shall promptly return or destroy all Confidential Information, including all copies, extracts, and derivative materials, and certify such return or destruction upon request; provided, however, that the Receiving Party may retain one archival copy for legal compliance purposes and may retain Confidential Information stored in routine backup systems, so long as any retained materials remain subject to this Agreement until destroyed in the ordinary course.

  9. Equitable Relief.
    Each Party acknowledges that unauthorized use or disclosure of Confidential Information, particularly trade secrets, may cause irreparable harm for which monetary damages may be inadequate. Accordingly, in the event of any actual or threatened breach of this Agreement, the Disclosing Party shall be entitled to seek injunctive relief, specific performance, and other equitable remedies, in addition to any other rights or remedies available at law or in equity.

  10. No Obligation to Proceed.
    Nothing in this Agreement obligates either Party to enter into or continue any joint venture, transaction, or business relationship, and each Party reserves the right to discontinue discussions at any time, subject to the confidentiality obligations set forth herein.


Key Legal Considerations

1. Mutuality and fairness

Because this is for a joint venture, the clause should be mutual, meaning both parties are protected equally. If one side will disclose much more sensitive information, the agreement may still be mutual but include tailored protections for especially sensitive categories.

2. Clear definition of “Confidential Information”

A strong clause should cover:

  • information marked confidential, and
  • information that is confidential by its nature, even if not marked.

This avoids losing protection for oral or informal disclosures. For oral disclosures, some parties add a requirement that the disclosing party confirm confidentiality in writing within a certain period.

3. Trade secrets need stronger and longer protection

Trade secrets are not just ordinary confidential information. They usually require:

  • secrecy,
  • economic value from that secrecy, and
  • reasonable efforts to maintain secrecy.

A key point is that trade secret obligations often should last as long as the information remains a trade secret, not merely for a fixed 2- or 5-year confidentiality term.

4. Permitted disclosure must be narrow but practical

In a joint venture, some disclosure is necessary. The clause should allow disclosure to:

  • employees,
  • affiliates,
  • professional advisers,
  • lenders or investors,
  • subcontractors or consultants,

but only on a need-to-know basis and only if they are bound by confidentiality obligations. This balances operational reality with protection.

5. Required legal disclosures

The clause should account for disclosures required by:

  • court orders,
  • subpoenas,
  • securities laws,
  • regulatory demands.

Important safeguards include:

  • notice to the disclosing party where legally permitted,
  • limiting disclosure to only what is necessary,
  • cooperation in seeking confidential treatment or protective orders.

6. Purpose limitation

The receiving party should be allowed to use the information only for the joint venture purpose, not for unrelated commercial advantage, competitive use, or independent exploitation. This is especially important when the parties may also be competitors.

7. Residuals and memory issues

Some agreements include a “residuals” clause allowing use of information retained in unaided memory. That can seriously weaken trade secret protection. In most trade secret-sensitive joint ventures, parties should approach residuals clauses cautiously or avoid them entirely.

8. Reverse engineering restrictions

If prototypes, software, technical materials, or samples will be shared, include an express prohibition on:

  • reverse engineering,
  • decompiling,
  • testing to derive formulas or processes.

This can be crucial to protecting technical trade secrets.

9. Return, destruction, and backup carve-outs

A practical clause should require return or destruction, but also recognize that:

  • legal departments may need one archival copy,
  • backup tapes and automated systems may retain data temporarily.

Those retained copies should remain confidential and not be used for any business purpose.

10. Remedies and enforceability

Trade secret misuse can cause harm that is hard to quantify. The agreement should preserve the right to seek:

  • injunctions,
  • specific performance,
  • damages where available.

Be aware that enforceability may vary by jurisdiction, especially for clauses that are too broad or vague.

11. Interaction with intellectual property ownership

An NDA does not by itself decide who owns:

  • improvements,
  • joint developments,
  • inventions,
  • derivative technology.

In a joint venture, you should separately address:

  • ownership of pre-existing IP,
  • ownership of jointly developed IP,
  • license rights,
  • commercialization rights.

This is often one of the most important issues in the overall deal.

12. Duration and survival

Many NDAs impose confidentiality obligations for a fixed term, such as 3 to 5 years. That may be acceptable for general confidential business information, but trade secret obligations should usually survive longer, as reflected in the sample clause.

13. Compliance with applicable law

You should consider:

  • the governing law,
  • forum/venue,
  • local trade secret statutes,
  • employee mobility laws,
  • data protection/privacy laws if personal data is involved,
  • antitrust/competition law concerns if competitors are sharing sensitive market information.

In a joint venture between competitors, information sharing must be carefully limited to avoid competition law problems.

14. Whistleblower and statutory carve-outs

In some jurisdictions, especially the United States, the agreement should avoid restricting legally protected whistleblowing or reporting to government authorities. For U.S. agreements involving trade secrets, consider adding a DTSA whistleblower immunity notice if appropriate.

A common form is to state that nothing in the agreement prohibits a party or individual from reporting possible legal violations to government agencies or making disclosures protected by law.


Practical drafting tips

For a real joint venture NDA, parties often also add:

  • a schedule listing especially sensitive information,
  • cybersecurity requirements,
  • export control compliance,
  • clean-team provisions if the parties are competitors,
  • data privacy addenda,
  • rules on copying and access logs,
  • incident notification obligations for unauthorized access.

Short caution

This is a general sample, not legal advice. NDA enforceability depends heavily on jurisdiction, industry, and the structure of the joint venture. For an actual transaction, a lawyer should tailor the clause, especially regarding trade secret duration, required disclosure procedures, and IP ownership.

If you want, I can also:

  1. turn this into a full mutual NDA, or
  2. make it more business-friendly or more founder/investor protective.

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Detailed Breakdown

Legal professionals have specific needs that go beyond general AI capability: document analysis, precise reasoning, confidentiality, and reliable sourcing. Both ChatGPT and Qwen bring meaningful strengths here, but they serve different legal workflows.

ChatGPT is the stronger choice for most legal tasks. Its 272K context window comfortably handles lengthy contracts, briefs, and depositions in a single session. File uploads let attorneys drop in PDFs directly — a contract review or discovery document can be parsed without copy-pasting. Web search enables ChatGPT to reference recent case law, regulatory updates, and statutory changes, which is critical in a field where currency of information matters. The canvas feature is useful for iterative drafting — redlining clauses, restructuring arguments, or tightening language in real time. GPT-5.4's GPQA Diamond score of 92.8% reflects strong expert-level reasoning, and legal analysis often demands exactly that kind of nuanced, multi-step logic. For tasks like drafting NDAs, summarizing deposition transcripts, or preparing litigation memos, ChatGPT performs reliably.

Qwen's primary advantage in a legal context is cost and multilingual capability. At roughly $0.40 per million input tokens versus ChatGPT's ~$2.50, Qwen becomes attractive for high-volume document processing — think large-scale contract review pipelines or due diligence workflows where hundreds of documents need screening. Its exceptional Chinese-language performance makes it the clear choice for cross-border matters involving Chinese-language contracts, regulatory filings, or communications with mainland Chinese counterparties. Qwen3.5 Plus also supports image understanding, useful for parsing scanned documents or handwritten exhibits.

The gaps, however, are meaningful for legal work. Qwen lacks web search, file uploads, and code execution — three features that materially improve legal productivity. It also scores notably lower on Humanity's Last Exam (28.7% vs 39.8%), suggesting ChatGPT handles harder, more ambiguous reasoning tasks better. For a field where precision and nuance directly affect outcomes, that gap matters.

Privacy is a consideration for both. Neither should be used for truly privileged or sensitive client communications without enterprise-grade data agreements in place. ChatGPT's enterprise tier addresses this more explicitly than Qwen's current Western-market positioning.

Recommendation: ChatGPT is the better all-around legal assistant for solo practitioners, law firms, and in-house legal teams doing drafting, research, and document review. Qwen is worth deploying in high-volume, cost-sensitive pipelines or wherever Chinese-language legal work is involved. For most legal professionals, ChatGPT's richer feature set justifies the price premium.

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