Comparison
hallucination-index vs cupel
Verdict
Pick hallucination-index if hallucination-Index helps users identify LLMs with the lowest propensity for factual errors across varying context lengths and source types; pick cupel if cupel is a JavaScript-based toolkit for discovering and evaluating the performance of large language models using configurable prompts, scoring mechanisms, multi-turn dialogues, and local inference server discovery.
Markdown twin · hallucination-index alternatives · cupel alternatives
GraphCanon updated Sep 10, 2026
vs
Trust & integrity
| Signal | hallucination-index | cupel |
|---|---|---|
| Maintenance | Dormant (395d since push) As of Aug 28, 2026 · github_public_v1 | Active (10d since push) As of Sep 10, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Aug 28, 2026 · github_public_v1 | Not a fork · Personal account As of Sep 10, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 11, 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
- hallucination-index
- Initiative to evaluate and rank popular LLMs based on hallucination propensity
- cupel
- discovery tool for evaluating LLM performance
Stars
- hallucination-index
- 116
- cupel
- 64
Forks
- hallucination-index
- 8
- cupel
- 0
Open issues
- hallucination-index
- 1
- cupel
- 2
Language
- hallucination-index
- -
- cupel
- Python
Adopt for
- hallucination-index
- Hallucination-Index helps users identify LLMs with the lowest propensity for factual errors across varying context lengths and source types.
- cupel
- Cupel is a JavaScript-based toolkit for discovering and evaluating the performance of large language models using configurable prompts, scoring mechanisms, multi-turn dialogues, and local inference server discovery.
Persona
- hallucination-index
- -
- cupel
- -
Runtime
- hallucination-index
- -
- cupel
- -
License
- hallucination-index
- -
- cupel
- Apache-2.0
Last pushed
- hallucination-index
- Jul 28, 2025
- cupel
- Aug 31, 2026
Categories
- hallucination-index
- Evaluation & Observability
- cupel
- Evaluation & Observability
Trust and health
Maintenance
- hallucination-index
- Dormant (18%)
- cupel
- Active (82%)
Days since push
- hallucination-index
- 395d
- cupel
- 10d
Open issues (now)
- hallucination-index
- 1
- cupel
- 2
Stars delta
- hallucination-index
- 0 (30d)
- cupel
- +13 (30d)
Owner type
- hallucination-index
- Organization
- cupel
- User
Full report
- hallucination-index
- Trust report
- cupel
- Trust report
Choose hallucination-index if…
- Tags unique to hallucination-index: hallucinations, large-language-models, openai, rag.
- Use when you need to ensure accuracy in short-context tasks, as it tests models like Chain-of-Note prompting techniques specifically for such scenarios.
- More GitHub stars (116 vs 64) - visibility, not fit.
When NOT to use hallucination-index
- Avoid using Hallucination-Index when your application requires real-time evaluation of hallucinations, as it focuses on predefined tests rather than live model performance.
- Do not rely solely on this index if your primary concern is the latest updates to LLM models; its data might not reflect recent improvements in models or the introduction of new ones.
Choose cupel if…
- Tags unique to cupel: inference-servers-discovery, local-llm, multi-turn-dialogue, prompt-generation.
- When aiming to evaluate LLMs on local servers due to its auto-discovery feature for known ports of inference servers
- More recently updated (last pushed Aug 31, 2026).
When NOT to use cupel
- If you require a solution that supports a non-JavaScript runtime environment, as Cupel is JavaScript-exclusive
- When you need a tool without UI capabilities since Cupel's UI is bundled in the package and may not suit headless operations
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (rungalileo/hallucination-index) · observed Aug 28, 2026
- GitHub forks (rungalileo/hallucination-index) · observed Aug 28, 2026
- Last push (rungalileo/hallucination-index) · observed Jul 28, 2025
- License file (unknown) · observed Aug 28, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (tolitius/cupel) · observed Sep 10, 2026
- GitHub forks (tolitius/cupel) · observed Sep 10, 2026
- Last push (tolitius/cupel) · observed Aug 31, 2026
- License file (Apache-2.0) · observed Sep 10, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: hallucination-index 116 · cupel 64 (synced Aug 28, 2026).
Common questions
- What is the difference between hallucination-index and cupel?
- hallucination-index: Initiative to evaluate and rank popular LLMs based on hallucination propensity. cupel: discovery tool for evaluating LLM performance. See the comparison table for live GitHub stats and shared categories.
- When should I choose hallucination-index over cupel?
- Choose hallucination-index over cupel when Tags unique to hallucination-index: hallucinations, large-language-models, openai, rag; Use when you need to ensure accuracy in short-context tasks, as it tests models like Chain-of-Note prompting techniques specifically for such scenarios; More GitHub stars (116 vs 64) - visibility, not fit.
- When should I choose cupel over hallucination-index?
- Choose cupel over hallucination-index when Tags unique to cupel: inference-servers-discovery, local-llm, multi-turn-dialogue, prompt-generation; When aiming to evaluate LLMs on local servers due to its auto-discovery feature for known ports of inference servers; More recently updated (last pushed Aug 31, 2026).
- When should I avoid hallucination-index?
- Avoid using Hallucination-Index when your application requires real-time evaluation of hallucinations, as it focuses on predefined tests rather than live model performance. Do not rely solely on this index if your primary concern is the latest updates to LLM models; its data might not reflect recent improvements in models or the introduction of new ones.
- When should I avoid cupel?
- If you require a solution that supports a non-JavaScript runtime environment, as Cupel is JavaScript-exclusive When you need a tool without UI capabilities since Cupel's UI is bundled in the package and may not suit headless operations
- Is hallucination-index or cupel more popular on GitHub?
- hallucination-index has more GitHub stars (116 vs 64). Stars measure visibility, not whether either tool fits your constraints.
- Are hallucination-index and cupel open source?
- Yes - both are open-source projects on GitHub.
- Where can I find alternatives to hallucination-index or cupel?
- GraphCanon lists graph-backed alternatives at hallucination-index alternatives and cupel alternatives (hallucination-index markdown twin, cupel 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, hallucination-index or cupel?
- hallucination-index: Dormant. cupel: Active. 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 hallucination-index and cupel?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: hallucination-index trust report; cupel trust report.