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Local Jev 1.13 alternatives: Kev and TinyJev

Short answer

Jev from TypeSafe AI runs through an API, while Kev and TinyJev are separate projects by other authors, inspired by a similar way of asking questions. For a company that needs local processing, this is a direction to test: the model reads text and picks a result from a fixed list, and quality is checked on your own categories.

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  2. 02PrototypeA working system on your process and data, free
  3. 03ImplementationTarget and fixed price in the contract; 50% at signing
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model on your server or in the cloud in the EU
quoted after the review
same work in application with EU cloud model
from €3,000
task, data and equipment analysis
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Author: Syntalith · 4 min read

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Statistics

Decision models and AI: statistics 2026

1.5 mo.

payback of a €3,000 local application at 5,000 decisions a month: €2,908 of work today, €941 with checking and the GPU server. Scenario.

Figures checked: 22 October 2026

What you can run
  • Jev from TypeSafe

    an API on OpenRouter

    no server of your own

  • Kev

    tuning on your own categories

    a GPU server

  • TinyJev

    a small model to try

    a workstation or a small server

What you can actually download

ProjectWhat the authors describeWhat to check in a company project
Jev 1.13 from TypeSafeA hosted decision service, available among others through OpenRouterThe contract, the data path through both services and where processing happens
KevA family of small decision models based on Qwen, with weights and the option of your own trainingThe chosen checkpoint, the hardware, the categories and the quality after tuning
TinyJevLocal models for choice, score and noul questions; MLX or PyTorch supportThe exact version, device compatibility and examples in your language
Open Alternative to JevA library that reads decisions from open modelsDifferences between backends and limits on reading probabilities

This is a list of features the authors declare, checked on 28 September 2026. It is no quality ranking. The projects move fast, so an installation should name a specific version.

Kev: a way to tune on your own categories

The Kev repository describes a family based on Qwen3.5 and Qwen3.8, with variants from 0.8B to 27B. It provides models and a further training process. The authors also describe a local server compatible with the System One interface.

Your company still needs its own assessment. Categories such as „return”, „quality complaint” and „missing part” may overlap differently from the author's data set. We prepare examples with the expected decisions, keep training apart from testing and compare the model before and after training.

A small adapter does not remove the base model's requirements. To run it, you have to match compatible weights, an engine and memory to the real length of the inputs.

TinyJev: small size as a point to check

TinyJev publishes 0.6B and 4B variants and paths for Apple Silicon and PyTorch. The 0.6B size is interesting for a personal computer or a narrow feature in an application. It says nothing, though, about accuracy on your own correspondence, for example in Polish, or about speed on long documents.

We measure the full response time, memory use and category errors. The authors' benchmark result does not replace a trial in your own language and with your own handling rules. If the model does not reach the threshold, you can try a larger variant or another approach.

Reading probabilities has limits too

Open Alternative to Jev uses existing models with open weights. The author describes different ways of asking questions and reading results through Hugging Face and vLLM. Depending on the backend, the available distribution may be limited, which affects how probabilities can be interpreted.

We do not call such a library a reproduction of Jev's weights or training. You can, however, compare whether it meets the same company goal at an acceptable cost of error. Shared data and criteria matter more than similar names.

A rollout covers more than installation

A local endpoint needs access control, limits, versioning and monitoring. When a returned decision leads to a write in a system, the application checks permissions and the agreed conditions for carrying it out. Before an update, we rerun the quality test and keep the previous version.

We also help individuals try such models on the hardware they own. If you are still planning a purchase, we start from the task and the memory requirements. Syntalith chooses, tunes and deploys private models, including small models for repeated decisions. Send sample categories and a description of the data; we will propose the scope of a trial.

What it costs

Scenario: 5,000 decisions a month
Today
5,000 decisions × 1 min = 83.3 h (€2,908)
With the application, an employee checks the result in 25% of the time
€727
Hetzner GEX45 GPU server
€214
Saving
€1,967 a month

Payback of €3,000

1.5 months

The volume, the time and the checking share are the scenario's assumptions, which we measure in the trial. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat. Price of the GEX45 server with 24 GB of GPU memory from Hetzner's website on 22 October 2026, excluding the one-off setup fee of €209.

What to agree with IT besides the model
  • Where the application takes documents from and where it saves results
  • What stays in logs, backups and the question history
  • Who has access to questions, answers and outputs
  • Who updates the model, the application and the document set

Where to start

In the free review we choose one task and 20 to 100 cases the team has already handled, and within 2 working days you receive a written summary with a price. We deploy the local model as part of private LLMs, and the application around it as part of AI apps.

Worked example · Scenario

How we count the payback: a local decision model

We run the same count for your team in the free review.

€4,188

a month for the work on 600 questions

EU cloud version payback: 0.8 mo.

Our assumptions are 12 minutes to find an answer in the documentation, and checking in 15% of the old time. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat, for companies with 10 or more employees. Model cost: Claude Sonnet 5.5, about 6,000 + 500 tokens per answer in the EU cloud version, at the ECB rate of 1.1205 USD per euro on 22 October 2026. We count the payback for an app with a model in the EU cloud (from €3,000 net). We price the model on your server after a call, and the cost of people's work stays the same.

See the full calculation →

This is how we implement it in companies

All case studies →

Client results.

All projects →
foap.comcustomer service

foap.com customer service: 95% of replies are sent automatically.

Users from several countries write to foap.com, in several languages. The system reads the entire conversation and the terms of that person, and then sends a response in that person's language. Questions about money and exceptions go to the team with a ready draft, so they have to check and send them.

the system sends the answers itself, without human typing
95%
time from the arrival of the e-mail to the ready response (median)
30 s
e-mails that require a response receive a ready-made draft
100%
less work for every 1000 answers (estimate)
47 h

Data from foap.com production, October 20-21, 2026. Estimate: 3 minutes for handwritten response.

How foap.com customer service works →
Sample messages. Money matters always come to the person.

Other implementations

jaktako.design

studio projektowe

−87%

Time to look for new customers, every day

4 hours → 30 min

approx. 73 hours less per month (21 days of work)

according to the studio

How the agent loop works →
Signature Estates

real estate

approx. −90%

Operator time spent browsing portals, per day

2–3 hours → 20 min

approx. 45 hours less per month (21 days of work)

respect · contact the seller 5 minutes after the announcement

How the agent finds property listings →
Kuba Koziej, CEO and co-founder of MoreGrowth and board member at Natu.Care

Kuba Koziej

CEO and co-founder, MoreGrowth

„We started with my own AI agent. During the training that followed, I learned to build new applications myself. Today I am bringing this way of working with AI into my business. Working with Syntalith gave me exactly the skills and tools I needed.”

View the original training review on LinkedIn ↗

A model on your server or in the cloud in the EU, proven on your tasks.Book a free process review (30 min) →

How we build automation and agents

From a conversation to a working system in four steps.

  1. 01 · 30 min

    Free process review

    €0

    You're talking to an engineer. You receive the written plan within 2 business days.

  2. 02 · 5 days

    Free prototype

    €0

    The system works on 20-100 cases that your team has already handled. You see every result.

  3. 03 · 2–16 weeks

    Build

    50%

    Fixed price and goal written in the contract. First installment upon signing.

  4. 04 · after reaching the goal

    Reception

    50%

    You pay the second installment when the system reaches its target on your cases.

How a free prototype is created

Mon.

We set a goal

What result do you consider good?

Tue–Wed

The system is working

It goes through your affairs, one by one.

Thu

We compare

We check every difference with the team's work.

Fri

Result and price

List of errors and fixed implementation price.

You choose the matters. We anonymize them upon request, they stay in the EU and we delete them after the test.

On the market, such a test usually costs from PLN 3,000 to PLN 8,000.

Book a free process review (30 min)

We establish a prototype during a free analysis.

Data checked on October 25, 2026.

„Is my data safe?”

Yes. You choose where they go: from your company account to the model on your server.

  1. 00Employee's private account

    Customer and company data ends up in an account that the company cannot see or control. There is no data processing agreement, so it is a violation of the GDPR. When an employee leaves, the chat history goes with them.

  2. 01ChatGPT or Claude corporate account

    The provider does not use your data to train models. A copy of the queries remains in his logs for up to 30 days.

  3. 02API with zero retention (ZDR)

    The provider processes the request and does not save anything. It requires his consent, we prepare the application together.

  4. 03Processing in the EU

    Queries are counted and stored in Europe: OpenAI in the EU region, Claude via clouds with the EU region.

  5. 04Model at your place

    The open model runs on your server or in your cloud in the EU. The data does not go outside the company.

What we do with every implementation

  • Confidentiality agreement and data processing agreement before we receive any data.
  • You choose the cases for the prototype and we anonymize them upon request.
  • The data stays in the EU and we delete it after the test.
  • Corporate accounts with an administrator on your side.

When data cannot leave the company

The open model runs on your server or in your cloud in the EU. To choose from:

White-tailed eagle
Polish model, SpeakLeash and ACK Cyfronet AGH
PLLUM
Polish model, HIVE consortium commissioned by the Ministry of Digitization
Qwen
Alibaba
GLM
Zhipu AI
DeepSeek
DeepSeek

We select a model for the task and check it on your cases. We run it, tune it and maintain it.

Source: Bielik and PLLuM, ACK Cyfronet AGH ↗ · PLLuM, Ministry of Digitization ↗

Do you have a lot of your own data? We will fine-tune the small model.

  1. 1 Your examples
  2. 2 tuning
  3. 3 test on new cases
  4. 4 model at your place

When you have thousands of similar emails, documents or reports, we teach a small open model based on your examples. It works for you, responds quickly and costs less to maintain than a large model. We measure quality on issues that the model has not seen while learning.

Przemysław and Piotr did it in large programming and consulting companies. Artem did it before and does it today at Syntalith. It's about models on your own infrastructure, tuning and quality measurement.

You choose the protection level during the interview. We sign the data processing agreement before we see any data.Schedule a free analysis →

Private AI models

A model on your server or in the cloud in the EU, proven on your tasks.

We select the model and equipment for the task, run it and measure the quality using your examples before you buy anything. The data stays in the company or in the cloud in the EU. We price implementation, hardware or hosting and support separately after analysis.

View private AI models →
model on your server or in the cloud in the EU
quoted after the review
same work in application with EU cloud model
from €3,000
task, data and equipment analysis
€0

Questions

  • Can Jev run locally?

    TypeSafe's Jev is available through an API. Locally, you can try separate projects, for example Kev or TinyJev, and tune them on your own categories.

  • What are Kev and TinyJev?

    Separate projects by other authors, inspired by Jev. Kev offers a way to tune on your own categories, and TinyJev is a small model to try on limited hardware.

  • How much does an application on a local model cost?

    At Syntalith, from €3,000 net plus GPU hardware, for example a Hetzner GEX45 server with 24 GB at €214 a month. At 5,000 decisions a month the payback is 1.5 months.

Let's talk

Just write, call or choose a date.

We work fast because we hate corporate cotton wool. We don't have salespeople or managers to keep an eye on managers. You talk immediately to engineers who then build your system. We respect each other's time and yours too.

We will accept 3 more companies by the end of the year.

Mon–Fri 9:00–17:00 CET

What our OpenAI and Anthropic partnerships mean for you.

OpenAI makes ChatGPT and Anthropic makes Claude. We belong to the partnership programs of both companies, so we work with their tools every day and learn from the creators themselves.

OpenAI Select PartnerClaude Partner Network
01We will select a tool for the task
We implement both ChatGPT and Claude. We check both on your documents, and you choose the one that makes fewer corrections and saves more time.
02Knowledge straight from the creators
We learn from official OpenAI and Anthropic courses and materials. Your team learns about the features and settings that work today.
03Licenses without our margin
When we roll out ChatGPT, Claude or Copilot, you buy the licences directly from OpenAI, Anthropic or Microsoft and they invoice you. We add nothing to the licence.
04Certified engineers
On the team, we have an AWS certification in machine learning and an Anthropic certification in systems architecture on Claude.

Participation in programs does not mean that OpenAI or Anthropic endorses our services.