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Day one · Feature 01 of 10+ is liveFrontier evals, red-teaming, post-training data and RL environments — for the teams building the most capable AI.

00 — Build log · day one

Feature 01 of 10+.
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Three years of working inside frontier models, every day, are now turning into tools. Probe is the first one out of the lab. The rest are being built in the open — some of what's next doesn't have a name yet.

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01 shipped01 in build08+ in the lab
Live now · v0.1

Pivyon Probe.
Find where your AI breaks.

Paste your AI's system prompt and the one thing it must never do. Probe scores its defences, builds a tailored attack suite across 11 techniques, and fires it live — scored by a hidden canary, not an opinion.

Run a free scan →
02In build

Frontier Weather

Daily behaviour readings for every frontier model — sycophancy, refusals, injection, drift.

03In design

Calibrate

Your AI, tuned to how you work in seven days — with before-and-after proof.

04Next

Probe · multi-turn

Attacks that unfold across a whole conversation, the way real ones do.

05In design

Injection Range

An open arena where anyone can try to break an agent — every win becomes a test.

06Preview ready

FrameProof

Preview AI-video plans, repair prompts and check estimated credits before rendering. Zero-credit animatic.

07In the lab

Unnamed · in eval

08In the lab

Unnamed · sketch

09In the lab

Unnamed · sketch

10+Not yet named

…

The ideas we haven't had yet. Follow along — we ship in public.

01 — Why Pivyon

We've spent more hours inside frontier models than 99.5% of the people who use them. That's the edge.

0.0%

Top tier of ChatGPT users — by ChatGPT's own ranking

0 yrs

Daily, adversarial use across frontier models

0

Ways we make models better: evals, red-teaming, data, environments

Benchmarks tell you how a model scores. We tell you how it behaves — where it breaks, why, and what data fixes it.

02 — Approach

We look inside the model.

Before we change anything, we measure it. Attention, outputs, failure clusters, judge agreement — so every fix is aimed, not guessed.

layer 23 · head 4
03 — Services
EvalsRed-teamingPost-training dataRL environments
01 / 04 · Frontier evals

Evals that predict production.

Custom benchmarks built from your real use cases — not leaderboard trivia. Capability elicitation, LLM-as-judge calibrated against expert humans, contamination checks, and a harness you keep.

  • Capability maps per checkpoint
  • Rubrics & judge calibration
  • Contamination & regression checks
02 / 04 · Red-teaming

We break it before your users do.

Adversarial testing by people who live inside these models. Jailbreak discovery, prompt-injection audits for agents, refusal calibration and reward-hacking hunts — every finding reproducible.

  • Jailbreak & policy bypass
  • Prompt injection · tool abuse
  • Over- & under-refusal
03 / 04 · Post-training data

Data that moves the loss curve.

Expert-written SFT demonstrations, preference pairs for RLHF and DPO, and reasoning traces — designed against the failures we found, and measured on the evals that matter.

  • SFT demonstrations
  • RLHF · DPO preference pairs
  • Reasoning traces & rubrics
04 / 04 · RL environments

Worlds for agents to learn in.

Verifiable tasks with graders that can't be gamed — tool-use, browser and workflow sandboxes where agents roll out, fail, and get better. Built for long-horizon reliability.

  • Verifiable tasks & graders
  • Tool-use & computer-use sandboxes
  • Long-horizon trajectories
04 — Field notes

What we find.

The failure modes we hunt, shown as illustrative examples — the kind of thing a 72-hour teardown surfaces, each with its fix.

pivyon://teardown/findings.log0 findings
05 — Engagements

Start with a teardown.
Stay for the data.

0172 hours

The Teardown

We attack your model or agent for 72 hours straight. You get a ranked failure report, reproducible prompts and a fix for each.

  • Severity-ranked findings
  • Repro prompts & transcripts
  • Fix & data recommendations
Book a teardown →
022 weeks

Eval Sprint

A custom eval suite for your product, a harness you keep, and baselines across the frontier models you're choosing between.

  • Custom eval suite
  • Calibrated LLM judges
  • Model-vs-model baselines
Plan a sprint →
03Ongoing

Frontier Embed

Your embedded red-team and data partner, release after release — preference data, reasoning traces and RL environments on demand.

  • Red-team every release
  • Post-training data on tap
  • RL environments & graders
Talk to us →
Built forFrontier labsAI-native startupsTeams shipping agentsEnterprises deploying LLMs
PivyonEvals · Red-teaming · Data · Environments
06 — Founder
3years inside
frontier AI systems
0.5%top tier of
ChatGPT users

— Founder, Pivyon
07 — Film
Explainer · 24s ▶Watch
08 — Contact

Tell us what your model should never do.
We'll find out if it does.

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A short note is enoughEnter to send