Evaluation & Testing

OpenAttack

An open-source toolkit for textual adversarial attacks.

Status
UnmaintainedNo commits in 1590 days.
Last checked
Aging · Sep 1, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

OpenAttack is an advanced toolkit designed to perform and evaluate textual adversarial attacks. It helps researchers and developers test the robustness of natural language processing models against various attack strategies, ensuring more reliable AI systems.

OpenAttack stands out by offering a comprehensive set of tools specifically designed for textual adversarial attacks, making it an essential resource for researchers and developers focused on enhancing the robustness of NLP models.

When it fits — and when it doesn’t

A good fit for

  • Academic researchers studying adversarial machine learning techniques in NLP.

  • Security professionals testing the resilience of text processing models against attacks.

Look elsewhere if

  • Projects requiring real-time attack simulation and response, as it is primarily a research tool.

  • Teams looking for a cloud-based service to manage their adversarial testing needs.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Steep learning curve for non-Python developers

    The toolkit heavily relies on Python-specific idioms and patterns, which can be challenging for developers not familiar with the language.

  2. 02

    Limited documentation and examples

    While comprehensive in scope, OpenAttack's documentation lacks detailed tutorials and practical examples, making it harder to implement specific use cases without deep research.

  3. 03

    Frequent breaking changes between versions

    Version updates often introduce significant API changes that require substantial refactoring of existing attack definitions and evaluation scripts.

  4. 04

    Narrow focus on textual adversarial attacks

    The toolkit is specialized for textual data, limiting its utility in scenarios involving other forms of input like images or audio.

What it does well

  • Supports a wide range of attack methods for text data.

  • Provides comprehensive evaluation metrics to assess the effectiveness of attacks.

  • Designed with flexibility in mind, allowing users to customize and extend its functionalities.

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

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Set up OpenAttack

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →