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fstandhartinger
jevbench
Python2026–2026
fstandhartinger / jevbench

jevbench

JevBench by Benchmark Heaven: benchmark and leaderboard for AI decision models, measuring typed decision accuracy, calibration, latency and cost.

3Distinct people
4Mentions
0Explicit recommenders
341GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

JevBench by Benchmark Heaven: benchmark and leaderboard for AI decision models, measuring typed decision accuracy, calibration, latency and cost.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by hour4 dated mentions

Observed mentions: 2026-09-22 13:01:03 UTC to 2026-09-23 11:32:15 UTC.

012026-09-22 13:00:00 UTC to 2026-09-22 14:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsSep 22, 13:002026-09-22 14:00:00 UTC to 2026-09-22 15:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 15:00:00 UTC to 2026-09-22 16:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 16:00:00 UTC to 2026-09-22 17:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 17:00:00 UTC to 2026-09-22 18:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 18:00:00 UTC to 2026-09-22 19:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 19:00:00 UTC to 2026-09-22 20:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 20:00:00 UTC to 2026-09-22 21:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 21:00:00 UTC to 2026-09-22 22:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 22:00:00 UTC to 2026-09-22 23:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-22 23:00:00 UTC to 2026-09-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 00:00:00 UTC to 2026-09-23 01:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsSep 23, 00:002026-09-23 01:00:00 UTC to 2026-09-23 02:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-09-23 02:00:00 UTC to 2026-09-23 03:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 03:00:00 UTC to 2026-09-23 04:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-09-23 04:00:00 UTC to 2026-09-23 05:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 05:00:00 UTC to 2026-09-23 06:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 06:00:00 UTC to 2026-09-23 07:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 07:00:00 UTC to 2026-09-23 08:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 08:00:00 UTC to 2026-09-23 09:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 09:00:00 UTC to 2026-09-23 10:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 10:00:00 UTC to 2026-09-23 11:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-09-23 11:00:00 UTC to 2026-09-23 12:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsSep 23, 11:00

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Sep 22, 13:002026-09-22 13:00:00 UTC2026-09-22 14:00:00 UTC110
Sep 22, 14:002026-09-22 14:00:00 UTC2026-09-22 15:00:00 UTC000
Sep 22, 15:002026-09-22 15:00:00 UTC2026-09-22 16:00:00 UTC000
Sep 22, 16:002026-09-22 16:00:00 UTC2026-09-22 17:00:00 UTC000
Sep 22, 17:002026-09-22 17:00:00 UTC2026-09-22 18:00:00 UTC000
Sep 22, 18:002026-09-22 18:00:00 UTC2026-09-22 19:00:00 UTC000
Sep 22, 19:002026-09-22 19:00:00 UTC2026-09-22 20:00:00 UTC000
Sep 22, 20:002026-09-22 20:00:00 UTC2026-09-22 21:00:00 UTC000
Sep 22, 21:002026-09-22 21:00:00 UTC2026-09-22 22:00:00 UTC000
Sep 22, 22:002026-09-22 22:00:00 UTC2026-09-22 23:00:00 UTC000
Sep 22, 23:002026-09-22 23:00:00 UTC2026-09-23 00:00:00 UTC000
Sep 23, 00:002026-09-23 00:00:00 UTC2026-09-23 01:00:00 UTC000
Sep 23, 01:002026-09-23 01:00:00 UTC2026-09-23 02:00:00 UTC101
Sep 23, 02:002026-09-23 02:00:00 UTC2026-09-23 03:00:00 UTC000
Sep 23, 03:002026-09-23 03:00:00 UTC2026-09-23 04:00:00 UTC101
Sep 23, 04:002026-09-23 04:00:00 UTC2026-09-23 05:00:00 UTC000
Sep 23, 05:002026-09-23 05:00:00 UTC2026-09-23 06:00:00 UTC000
Sep 23, 06:002026-09-23 06:00:00 UTC2026-09-23 07:00:00 UTC000
Sep 23, 07:002026-09-23 07:00:00 UTC2026-09-23 08:00:00 UTC000
Sep 23, 08:002026-09-23 08:00:00 UTC2026-09-23 09:00:00 UTC000
Sep 23, 09:002026-09-23 09:00:00 UTC2026-09-23 10:00:00 UTC000
Sep 23, 10:002026-09-23 10:00:00 UTC2026-09-23 11:00:00 UTC000
Sep 23, 11:002026-09-23 11:00:00 UTC2026-09-23 12:00:00 UTC101

What Hacker News says

4 sources
Happy to — please open an issue at https://github.com/fstandhartinger/jevbench/issues with an endpoint or runnable code, the model and licence, and whether it was trained on the public items. Every entrant runs through the same harness, including the sealed set. I definitely prefer open models I can run locally, because sending our private held-out set of tasks to an external API produces some headaches on ur side and basically means we have to rotate the test set a lot, to avoid contaimination. We can call API hosted models though, we'll just flag the leaderboard entries appropriately.
In Show HN: JevBench, a reproducible benchmark for typed decision models
... why didn't you link to the actual benchmark which does have Jev at the top? https://benchmarkheaven.com/jev-models You linked to some weird subtable that labeled: " Not the default — not the JevBench Score", that can only be reached after you see what I just linked... lmao are you really this hard up about things? Also every single question (even in the hard set) is single dimensional?: https://github.com/fstandhartinger/jevbench/blob/main/datase... Jeeze, this is getting sad. I guess after all the mass-psychoses where people thought pointless things are going to change the world, we were due for a mass-psychosis where something interesting just has to be pointless?
In OpenAI is well positioned to fast-follow Jev

Show HN: JevBench, a reproducible benchmark for typed decision models

Hi HN! I built JevBench because Jev kicks ass, and the world deserves to know how the serious open source and fake lookalike projects really perform in comparison. Jev-class models return bounded choices and probabilities instead of text, and are disruptively faster and cheaper than LLMs, while being similarly intelligent on the text input they operate on. JevBench allows looking at accuracy, latency and price all at once, in a weighted way - you can even configure the weighting. A full run asks 534 English decisions. The v1.3 score combines chance-corrected Intelligence, Calibration, Speed and Cost. Leaderboard right now: #1 - Jev 74.4 #2 - SemIf 73.1 #3 - djev 73.0 #4 - Winnow-12B Q8 71.2 #5 reflex 4B 70.3. MIT harness, public items, frozen artifacts, scoring code and public per-task outc
Read the rest
omes: https://github.com/fstandhartinger/jevbench Two no-signup demos: https://who-is-right.app.mintapis.com https://is-it-ai-slop.app.mintapis.com Limitations: English-only; latency from one German server; local/demo latency gets a disclosed ×2 adjustment (+150 ms on my servers) which is an informed assumption; held-out prompts still reach evaluated services; ~1-point gaps can be noise. Wdyt?
154 points · Open discussion

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