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ArseneLupin-v1.1

IBOU-SEARCHDecision modelOpen weights

ArseneLupin-v1.1 by IBOU-SEARCH is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text.

Pricing

No hosted price is listed. The weights are open: the cost is your own compute.

Specifications

Provider
IBOU-SEARCH
Parameters
5B
Released
Sep 2026
Open weights
Yes
Question types
Choice (one of N options), Score (ordered rubric), Yes / no
Mechanism
Decoder LM with a decision readout
Backbone
Qwen/Qwen3.5-4B
Jev-compatible request
Yes
Runs on CPU
No
License
apache-2.0
Hugging Face
IBOU-SEARCH/ArseneLupin-v1.1

Benchmarks

Benchmark Heaven JevBench (Capability)
55.1

Compare ArseneLupin-v1.1 with…

ArseneLupin-v1.1 vs GLiNER2.5-Decide—/1M inArseneLupin-v1.1 vs Baseten: Mammoth 1 (free)$0.00/1M inArseneLupin-v1.1 vs Baseten: Elephant 1 (free)$0.00/1M inArseneLupin-v1.1 vs Nace.AI: Drex Max$0.06/1M inArseneLupin-v1.1 vs Perplexity: Decider Latest$0.02/1M inArseneLupin-v1.1 vs amos-1-medium—/1M in

FAQ

How much does ArseneLupin-v1.1 cost?

ArseneLupin-v1.1 has no hosted price listed; its weights are open, so the cost is the compute you run it on.

What questions can ArseneLupin-v1.1 answer?

ArseneLupin-v1.1 answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.

Is ArseneLupin-v1.1 well calibrated?

No calibration measurement for ArseneLupin-v1.1 is recorded yet.

Is ArseneLupin-v1.1 open weight, and can it run on a CPU?

Yes, ArseneLupin-v1.1 has open weights. It needs a GPU to run at useful speed.

Data as of 2026-10-14. Source: Metatext decision-model catalogue, 2026-10-14 (Hugging Face). Pricing is per 1M tokens (USD); confirm with the provider before production use.