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EvalPlus hardening over the sanitized MBPP subset.
This benchmark is indexed in the Benchlist registry. We're working on a deeper guide, request priority coverage → if you'd like this article expanded.
How MBPP+ is graded
The canonical run uses temperature 0.0 and max_tokens 1024. 378 problems graded by accuracy. License: Apache-2.0.
Common pitfalls when reporting MBPP+
The same number can mean very different things depending on how it was produced. The biggest failure modes specific to this benchmark:
- See /methodology for general benchmark-reporting pitfalls.
Live Benchlist leaderboard
Top attested scores from the Benchlist registry, hydrated client-side from /api/runs.json. Self-reported numbers are de-prioritised, attested results from a real signed transcript always rank above vendor-disclosed ones.
Top scores · MBPP+
Full leaderboard →How to ship a MBPP+ score that nobody can challenge
Run MBPP+ on Benchlist
Benchlist runs the canonical MBPP+ sample set, captures every transcript, builds a Merkle commitment, and signs the result with an Ed25519 attestor key. The score lands at a public verify URL anyone can replay, and you can opt into an Aligned Layer ZK anchor on Ethereum L1.
Hosted runner, POST a job and we email the verify URL when it's done:
curl -X POST https://benchlist.ai/api/v1/run \
-H "Authorization: Bearer $BENCHLIST_KEY" \
-H "Content-Type: application/json" \
-d '{
"service": "anthropic-claude",
"model": "claude-sonnet-4.5",
"benchmark": "mbpp-plus",
"runs": 1,
"limit": 50,
"proof_system": "signed",
"inference_api_key": "managed"
}'Self-hosted, install benchlist-runner via pip, point it at your inference key, get a signed run.json:
pip install benchlist-runner
benchlist run mbpp-plus --service anthropic-claude --model claude-sonnet-4.5 --limit 50
benchlist publish run.jsonFAQ
What is MBPP+?
How do I verify a MBPP+ score?
benchlist run mbpp-plus and replay the Ed25519 signature at /verify/