Best Crucible Alternatives in 2026
The top Crucible alternatives are PromptGuard, Akto Agentic Red Teaming and Mindgard: 15 AI security testing tools our editors would look at instead of Crucible, in our ranking order.
Crucible: A broad CLI for testing agent attack lifecycles locally and in CI/CD. Where it falls short: team features are listed as early access.
Switching from Crucible? For most ai security testing tools buyers the best Crucible alternative is PromptGuard, built for teams wanting broad, affordable red teaming.
Why People Look for a Crucible Alternative
- Team features are listed as Early Access
- Hosted dashboards are upcoming or early-access functionality
- Enterprise pricing is custom rather than publicly stated
Quick Picks by What You Need
- Best overallPromptGuard9.3
Teams wanting broad, affordable red teaming
Visit PromptGuard - Lowest pricePromptGuard9.3
Paid plans from $19/seat/mo
Visit PromptGuard - Best free optionPromptGuard9.3
Has a free plan
Visit PromptGuard
All 15 Crucible Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forTeams wanting broad, affordable red teaming
- Better than Crucible:
- Editor score 9.3 vs 8.4
Broad AI security testing with flexible deployment and a low-cost paid entry tier.
- Custom test cases
- Unsafe output tests
- Data leakage tests
9.3/10★★★★★Visit PromptGuard -
Best forEnterprise agent and API security teams
- Better than Crucible:
- Editor score 9.1 vs 8.4
Broad AI security testing for enterprise agent and API security teams.
- Custom test cases
- Unsafe output tests
- Data leakage tests
9.1/10★★★★★Visit Akto -
Best forEnterprise AI risk and remediation programs
- Better than Crucible:
- Editor score 9.0 vs 8.4
A broad AI risk platform spanning discovery, testing, protection, and remediation.
- Custom test cases
- Unsafe output tests
- Data leakage tests
9.0/10★★★★☆Visit Mindgard -
Best forLarge enterprises using F5 infrastructure
- Better than Crucible:
- Editor score 8.8 vs 8.4
A self-hosted AI red-team platform for testing attacks, agent behavior, and operational risk.
- Custom test cases
- Unsafe output tests
- Data leakage tests
8.8/10★★★★☆Visit F5 AI Red Team -
Best forDevelopers building evaluation into CI/CD
- Better than Crucible:
- Editor score 8.7 vs 8.4
Open-source AI evaluation and red teaming for development teams shipping LLM applications.
8.7/10★★★★☆Visit Promptfoo -
Best forCompliance-focused security engineers
- Better than Crucible:
- Editor score 8.6 vs 8.4
A self-hosted toolkit for testing LLM security risks and producing compliance-ready reports.
- Custom test cases
- Unsafe output tests
- Data leakage tests
8.6/10★★★★☆Visit RedForge -
Best forSmall teams wanting transparent pricing
- Better than Crucible:
- Editor score 8.5 vs 8.4
A focused cloud scanner with transparent entry pricing for AI-agent security testing.
- Unsafe output tests
- Data leakage tests
- Jailbreak tests
8.5/10★★★★☆Visit AgentScan -
Best forMature teams needing evaluation workflows
Open-source testing with evaluation workflows for teams operating LLM applications.
8.3/10★★★★☆Visit Giskard -
Best forTeams wanting free continuous validation
A free platform for continuous red-team and guardrail validation of AI systems.
- Unsafe output tests
- Data leakage tests
- Jailbreak tests
8.2/10★★★★☆Visit AIRTaaS -
Best forBudget-conscious teams wanting a hosted scanner
A flexible hosted and local scanner with broad LLM security coverage.
- Unsafe output tests
- Data leakage tests
- Jailbreak tests
8.1/10★★★★☆Visit OpenSecureAI -
Best forTeams needing continuous pre-production testing
A broad AI security testing platform for continuous evaluations and actionable risk findings.
- Unsafe output tests
- Data leakage tests
- Jailbreak tests
8.0/10★★★★☆Visit site -
Best forOpen-source teams needing broad local testing
Broad self-hosted AI security testing with evolutionary adversarial search and CI/CD support.
- Custom test cases
- Unsafe output tests
- Data leakage tests
7.9/10★★★★☆Visit Basilisk -
Best forPython teams using compliance mappings
A Python-first toolkit for testing AI applications against attacks, leaks and unsafe outputs.
- Custom test cases
- Unsafe output tests
- Data leakage tests
7.8/10★★★★☆Explore DeepTeam -
Best forOpen-source LLM weakness scanning
A free, extensible command-line toolkit for scanning LLM weaknesses across local and hosted models.
7.7/10★★★★☆Visit garak -
Best forPortable security probe automation
A portable Go scanner for probing LLMs across attacks, providers, and custom endpoints.
- Custom test cases
- Unsafe output tests
- Data leakage tests
7.6/10★★★★☆Visit Augustus
Crucible Alternatives: Common Questions
What is the best alternative to Crucible?
PromptGuard: #1 in our AI Security Testing Tools ranking, with an editor score of 9.3 out of 10. Broad AI security testing with flexible deployment and a low-cost paid entry tier.
Is there a free alternative to Crucible?
Yes. PromptGuard, Promptfoo, RedForge, AgentScan and Giskard have a free plan or a free tier (11 of the 15 alternatives on this page).
What is the cheapest paid alternative to Crucible?
Of the alternatives here that publish a price, PromptGuard starts lowest, at $19/seat/mo.
Why do people look for Crucible alternatives?
Team features are listed as Early Access; Hosted dashboards are upcoming or early-access functionality; Enterprise pricing is custom rather than publicly stated.
How do I switch from Crucible?
Export your data from Crucible (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Crucible.
How to Switch from Crucible
- Export your data from Crucible (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel Crucible.
Crucible vs Each Alternative
| # | Tool | Free plan | Paid from | Prompt injection tests | Jailbreak tests | Data leakage tests | Unsafe output tests | Custom test cases | Deployment mode | Score |
|---|---|---|---|---|---|---|---|---|---|---|
| 8 | Crucible | Yes | Yes | Yes | Yes | Yes | Self_hosted | 8.4 | ||
| 1 | PromptGuard | Yes | $19/seat/mo | Yes | Yes | Yes | Yes | Yes | Both | 9.3 |
| 2 | Akto Agentic Red Teaming | Yes | Yes | Yes | Yes | Yes | Both | 9.1 | ||
| 3 | Mindgard | Yes | Yes | Yes | Yes | Yes | Both | 9.0 | ||
| 4 | F5 AI Red Team | Yes | Yes | Yes | Yes | Yes | Both | 8.8 | ||
| 5 | Promptfoo | Yes | 8.7 | |||||||
| 6 | RedForge | Free | Yes | Yes | Yes | Yes | Yes | Self_hosted | 8.6 | |
| 7 | AgentScan | Yes | $29/mo | Yes | Yes | Yes | Yes | Cloud | 8.5 | |
| 8 | Giskard | Yes | 8.3 | |||||||
| 9 | AIRTaaS | Yes | Free | Yes | Yes | Yes | Yes | 8.2 | ||
| 10 | OpenSecureAI Scanner | Yes | $49/mo | Yes | Yes | Yes | Yes | Both | 8.1 | |
| 11 | Prompt Security AI Red Teaming | Yes | Yes | Yes | Yes | Both | 8.0 | |||
| 12 | Basilisk | Yes | Free | Yes | Yes | Yes | Yes | Yes | Self_hosted | 7.9 |
| 13 | DeepTeam | Free | Yes | Yes | Yes | Yes | Yes | Self_hosted | 7.8 | |
| 14 | garak | Yes | Free | 7.7 | ||||||
| 15 | Augustus | Free | Yes | Yes | Yes | Yes | Yes | Self_hosted | 7.6 |
Head-to-Head
- Crucible vs PromptGuard
- Crucible vs Akto Agentic Red Teaming
- Crucible vs Mindgard
- Crucible vs F5 AI Red Team
- Crucible vs Promptfoo
- Crucible vs RedForge
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update