Comparison
promptguard vs open-bias
Verdict
Pick promptguard if promptGuard audits prompts for AI agents to ensure safe code generation; pick open-bias if open-bias is an open-source tool for implementing rule adherence in AI agents through one line of code. It offers comprehensive functionalities including enforcement, tracing, and improvement of compliance rules.
Markdown twin · promptguard alternatives · open-bias alternatives
GraphCanon updated Sep 20, 2026
11views this month
vs
Trust & integrity
| Signal | promptguard | open-bias |
|---|---|---|
| Maintenance | Steady (51d since push) As of Sep 12, 2026 · github_public_v1 | Slowing (112d since push) As of Sep 12, 2026 · github_public_v1 |
| Provenance | Not a fork · Personal account As of Sep 12, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 12, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 15, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 15, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- promptguard
- Audits prompts as behavioral contracts for AI agents.
- open-bias
- One line of code to enforce, trace, and improve rule adherence for AI agents.
Stars
- promptguard
- 86
- open-bias
- 142
Forks
- promptguard
- 1
- open-bias
- 5
Open issues
- promptguard
- 0
- open-bias
- 0
Language
- promptguard
- Python
- open-bias
- Python
Adopt for
- promptguard
- PromptGuard audits prompts for AI agents to ensure safe code generation.
- open-bias
- Open-bias is an open-source tool for implementing rule adherence in AI agents through one line of code. It offers comprehensive functionalities including enforcement, tracing, and improvement of compliance rules.
Persona
- promptguard
- -
- open-bias
- -
Runtime
- promptguard
- -
- open-bias
- -
License
- promptguard
- MIT
- open-bias
- Apache-2.0
Last pushed
- promptguard
- Jul 22, 2026
- open-bias
- May 23, 2026
Categories
- promptguard
- AI Agents, Evaluation & Observability
- open-bias
- AI Agents, Evaluation & Observability
Trust and health
Maintenance
- promptguard
- Steady (60%)
- open-bias
- Slowing (36%)
Days since push
- promptguard
- 51d
- open-bias
- 112d
Owner type
- promptguard
- User
- open-bias
- Organization
Full report
- promptguard
- Trust report
- open-bias
- Trust report
Choose promptguard if…
- License: promptguard is MIT, open-bias is Apache-2.0.
- Tags unique to promptguard: ai-agents, audit, prompt-engineering, safety.
- When developing AI agents that generate code and need strict adherence to safety standards
When NOT to use promptguard
- If your project does not involve prompting AI for code generation or execution
- In scenarios where real-time prompt auditing is required as it focuses on post-audit analysis
Choose open-bias if…
- License: open-bias is Apache-2.0, promptguard is MIT.
- Tags unique to open-bias: agentic-ai, ai-compliance, llm-guardrails, policy-engine.
- You need to enforce detailed rule sets on your AI agents quickly with minimal integration effort.
When NOT to use open-bias
- You prefer tools that offer more advanced customization options beyond the one-line code integration.
- Your project prioritizes less intrusive methods for AI governance, avoiding additional layers of complexity on existing architectures.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (mturac/promptguard) · observed Sep 20, 2026
- GitHub forks (mturac/promptguard) · observed Sep 20, 2026
- Last push (mturac/promptguard) · observed Jul 22, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
- GitHub stars (open-bias/open-bias) · observed Sep 20, 2026
- GitHub forks (open-bias/open-bias) · observed Sep 20, 2026
- Last push (open-bias/open-bias) · observed May 23, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: promptguard 86 · open-bias 142 (synced Sep 20, 2026).
Common questions
- What is the difference between promptguard and open-bias?
- promptguard: Audits prompts as behavioral contracts for AI agents.. open-bias: One line of code to enforce, trace, and improve rule adherence for AI agents.. See the comparison table for live GitHub stats and shared categories.
- When should I choose promptguard over open-bias?
- Choose promptguard over open-bias when License: promptguard is MIT, open-bias is Apache-2.0; Tags unique to promptguard: ai-agents, audit, prompt-engineering, safety; When developing AI agents that generate code and need strict adherence to safety standards.
- When should I choose open-bias over promptguard?
- Choose open-bias over promptguard when License: open-bias is Apache-2.0, promptguard is MIT; Tags unique to open-bias: agentic-ai, ai-compliance, llm-guardrails, policy-engine; You need to enforce detailed rule sets on your AI agents quickly with minimal integration effort.
- When should I avoid promptguard?
- If your project does not involve prompting AI for code generation or execution In scenarios where real-time prompt auditing is required as it focuses on post-audit analysis
- When should I avoid open-bias?
- You prefer tools that offer more advanced customization options beyond the one-line code integration. Your project prioritizes less intrusive methods for AI governance, avoiding additional layers of complexity on existing architectures.
- Is promptguard or open-bias more popular on GitHub?
- open-bias has more GitHub stars (142 vs 86). Stars measure visibility, not whether either tool fits your constraints.
- Are promptguard and open-bias open source?
- Yes - both are open-source projects on GitHub (promptguard: MIT, open-bias: Apache-2.0).
- Where can I find alternatives to promptguard or open-bias?
- GraphCanon lists graph-backed alternatives at promptguard alternatives and open-bias alternatives (promptguard markdown twin, open-bias markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, promptguard or open-bias?
- promptguard: Steady. open-bias: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for promptguard and open-bias?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: promptguard trust report; open-bias trust report.