Comparison
brain-in-the-fish vs simple-evals
Verdict
Pick brain-in-the-fish if brain-in-the-fish is an ontology-based document evaluation tool that verifies claims using RDF, OWL, SPARQL, and supports anti-hallucination; pick simple-evals if simple-evals provides lightweight tools for evaluating language models using reference implementations from HealthBench, BrowseComp, SimpleQA. Last updates July 2025.
Markdown twin · brain-in-the-fish alternatives · simple-evals alternatives
GraphCanon updated Sep 27, 2026
13views this month
vs
Trust & integrity
| Signal | brain-in-the-fish | simple-evals |
|---|---|---|
| Maintenance | Active (28d since push) As of Sep 9, 2026 · github_public_v1 | Slowing (136d since push) As of Sep 6, 2026 · github_public_v1 |
| Provenance | Not a fork · Personal account As of Sep 9, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 6, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Sep 27, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 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
- brain-in-the-fish
- Score any document. Prove every claim.
- simple-evals
- A lightweight library for evaluating language models.
Stars
- brain-in-the-fish
- 87
- simple-evals
- 4.6k
Forks
- brain-in-the-fish
- 15
- simple-evals
- 508
Open issues
- brain-in-the-fish
- 0
- simple-evals
- 62
Language
- brain-in-the-fish
- Rust
- simple-evals
- Python
Adopt for
- brain-in-the-fish
- brain-in-the-fish is an ontology-based document evaluation tool that verifies claims using RDF, OWL, SPARQL, and supports anti-hallucination.
- simple-evals
- simple-evals provides lightweight tools for evaluating language models using reference implementations from HealthBench, BrowseComp, SimpleQA. Last updates July 2025.
Persona
- brain-in-the-fish
- -
- simple-evals
- -
Runtime
- brain-in-the-fish
- -
- simple-evals
- -
License
- brain-in-the-fish
- MIT
- simple-evals
- MIT licensed Python library for transparent language model evaluations with specific benchmark support until July 2025.
Last pushed
- brain-in-the-fish
- Aug 11, 2026
- simple-evals
- Apr 22, 2026
Categories
- brain-in-the-fish
- Evaluation & Observability, Model Training
- simple-evals
- Evaluation & Observability
Trust and health
Maintenance
- brain-in-the-fish
- Active (82%)
- simple-evals
- Slowing (36%)
Days since push
- brain-in-the-fish
- 28d
- simple-evals
- 136d
Open issues (now)
- brain-in-the-fish
- 0
- simple-evals
- 62
Stars delta
- brain-in-the-fish
- +4 (30d)
- simple-evals
- +30 (30d)
Open issues delta
- brain-in-the-fish
- 0 (30d)
- simple-evals
- +6 (30d)
Owner type
- brain-in-the-fish
- User
- simple-evals
- Organization
Full report
- brain-in-the-fish
- Trust report
- simple-evals
- Trust report
Choose brain-in-the-fish if…
- brain-in-the-fish is primarily Rust; simple-evals is Python.
- Tags unique to brain-in-the-fish: ai, anti-hallucination, audit-trail, document-evaluation.
- Also covers Model Training.
- brain-in-the-fish ships Docker support for self-hosted deployment.
- Need Rust-based tools for document scoring and claim verification with strong focus on audit trails
When NOT to use brain-in-the-fish
- Do not use when your evaluation needs are simpler or require a different programming language than Rust
- Avoid if you do not need support for complex features such as RDF, OWL, and SPARQL integrations
Choose simple-evals if…
- simple-evals is primarily Python; brain-in-the-fish is Rust.
- Tags unique to simple-evals: benchmark, depreciation notice, evaluation, language models.
- When you need a stable baseline to evaluate model performance with specific benchmarks like MMLU, HumanEval, and DROP that won't change after July 2025
When NOT to use simple-evals
- For evaluating models released or significantly updated after July 2025, as this tool does not include future benchmarks
- When you need a tool that will adapt and expand its benchmark set with emerging model releases and evaluation tasks beyond 2025
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (fabio-rovai/brain-in-the-fish) · observed Sep 20, 2026
- GitHub forks (fabio-rovai/brain-in-the-fish) · observed Sep 20, 2026
- Last push (fabio-rovai/brain-in-the-fish) · observed Aug 11, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Sep 27, 2026
- GitHub stars (openai/simple-evals) · observed Sep 20, 2026
- GitHub forks (openai/simple-evals) · observed Sep 20, 2026
- Last push (openai/simple-evals) · observed Apr 22, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 14, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: brain-in-the-fish 87 · simple-evals 4.6k (synced Sep 20, 2026).
Common questions
- What is the difference between brain-in-the-fish and simple-evals?
- brain-in-the-fish: Score any document. Prove every claim.. simple-evals: A lightweight library for evaluating language models.. See the comparison table for live GitHub stats and shared categories.
- When should I choose brain-in-the-fish over simple-evals?
- Choose brain-in-the-fish over simple-evals when brain-in-the-fish is primarily Rust; simple-evals is Python; Tags unique to brain-in-the-fish: ai, anti-hallucination, audit-trail, document-evaluation; Also covers Model Training; brain-in-the-fish ships Docker support for self-hosted deployment; Need Rust-based tools for document scoring and claim verification with strong focus on audit trails.
- When should I choose simple-evals over brain-in-the-fish?
- Choose simple-evals over brain-in-the-fish when simple-evals is primarily Python; brain-in-the-fish is Rust; Tags unique to simple-evals: benchmark, depreciation notice, evaluation, language models; When you need a stable baseline to evaluate model performance with specific benchmarks like MMLU, HumanEval, and DROP that won't change after July 2025.
- When should I avoid brain-in-the-fish?
- Do not use when your evaluation needs are simpler or require a different programming language than Rust Avoid if you do not need support for complex features such as RDF, OWL, and SPARQL integrations
- When should I avoid simple-evals?
- For evaluating models released or significantly updated after July 2025, as this tool does not include future benchmarks When you need a tool that will adapt and expand its benchmark set with emerging model releases and evaluation tasks beyond 2025
- Is brain-in-the-fish or simple-evals more popular on GitHub?
- simple-evals has more GitHub stars (4,625 vs 87). Stars measure visibility, not whether either tool fits your constraints.
- Are brain-in-the-fish and simple-evals open source?
- Yes - both are open-source projects on GitHub (brain-in-the-fish: MIT, simple-evals: MIT).
- Where can I find alternatives to brain-in-the-fish or simple-evals?
- GraphCanon lists graph-backed alternatives at brain-in-the-fish alternatives and simple-evals alternatives (brain-in-the-fish markdown twin, simple-evals 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, brain-in-the-fish or simple-evals?
- brain-in-the-fish: Active. simple-evals: 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 brain-in-the-fish and simple-evals?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: brain-in-the-fish trust report; simple-evals trust report.