# Antoine Chaffin (slim)

> Antoine Chaffin is member of Technical Staff; decision-model research contributor. pplx-decider and pplx-decider-flash on Anchor Terminal, with grades, an about and public profiles.

- Full: https://www.anchorterminal.com/people/antoine-chaffin/index.md (~1,600 tokens) · this version ~1,380 tokens · JSON https://www.anchorterminal.com/people/antoine-chaffin/index.json · canonical https://www.anchorterminal.com/people/antoine-chaffin/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Member of Technical Staff; decision-model research contributor.

- LinkedIn: https://www.linkedin.com/in/antoine-chaffin/

## What Antoine builds

- [pplx-decider](https://www.anchorterminal.com/tools/pplx-decider.md), graded B, 68.2/100, in Decision models. pplx-decider is Perplexity's 27B decision model, a fine-tune of Qwen3.8-27B. It answers yes or no, choice and score questions about text, JSON and images with probabilities, through Perplexity's hosted Decisions API or open weights on Hugging Face. Member of Technical Staff; decision-model research contributor, researched 2026-10-27.
- [pplx-decider-flash](https://www.anchorterminal.com/tools/pplx-decider-flash.md), graded B, 68/100, in Decision models. pplx-decider-flash is Perplexity's 4B decision model, a Qwen3.5-4B fine-tune distilled from the 27B pplx-decider. It answers yes or no, choice and score questions about text, JSON and images with probabilities, through the hosted Decisions API or open weights. Member of Technical Staff; decision-model research contributor, researched 2026-10-27.

## Works with

- [Andy Konwinski](https://www.anchorterminal.com/people/andy-konwinski/), Co-founder, Perplexity
- [Aravind Srinivas](https://www.anchorterminal.com/people/aravind-srinivas/), Co-founder, Perplexity
- [Denis Yarats](https://www.anchorterminal.com/people/denis-yarats/), Co-founder and CTO, Perplexity
- [Jerry Ma](https://www.anchorterminal.com/people/jerry-ma/), VP Global Affairs and Deputy CTO
- [Johnny Ho](https://www.anchorterminal.com/people/johnny-ho/), Co-founder, Perplexity

## Backed by

- [Elad Gil](https://www.anchorterminal.com/investors/elad-gil/)
- [Nat Friedman](https://www.anchorterminal.com/investors/nat-friedman/)
- [Bob Muglia](https://www.anchorterminal.com/investors/bob-muglia/)
- [Pieter Abbeel](https://www.anchorterminal.com/investors/pieter-abbeel/)
- [Yann LeCun](https://www.anchorterminal.com/investors/yann-lecun/)
- [Andrej Karpathy](https://www.anchorterminal.com/investors/andrej-karpathy/)
- [Ashish Vaswani](https://www.anchorterminal.com/investors/ashish-vaswani/)
- [Amjad Masad](https://www.anchorterminal.com/investors/amjad-masad/)
- [Clem Delangue](https://www.anchorterminal.com/investors/clem-delangue/)
- [New Enterprise Associates](https://www.anchorterminal.com/investors/new-enterprise-associates/)
- [Databricks](https://www.anchorterminal.com/investors/databricks/)
- [Susan Wojcicki](https://www.anchorterminal.com/investors/susan-wojcicki/)
- [Paul Buchheit](https://www.anchorterminal.com/investors/paul-buchheit/)
- [Soleio](https://www.anchorterminal.com/investors/soleio/)
- [IVP](https://www.anchorterminal.com/investors/ivp/)
- [NVIDIA](https://www.anchorterminal.com/investors/nvidia/)
- [Bezos Expeditions](https://www.anchorterminal.com/investors/bezos-expeditions/)
- [Bessemer Venture Partners](https://www.anchorterminal.com/investors/bessemer-venture-partners/)
- [Factorial Capital](https://www.anchorterminal.com/investors/factorial-capital/)
- [Kindred Ventures](https://www.anchorterminal.com/investors/kindred-ventures/)
- [Tobi Lutke](https://www.anchorterminal.com/investors/tobi-lutke/)
- [Naval Ravikant](https://www.anchorterminal.com/investors/naval-ravikant/)
- [Balaji Srinivasan](https://www.anchorterminal.com/investors/balaji-srinivasan/)
- [Guillermo Rauch](https://www.anchorterminal.com/investors/guillermo-rauch/)
- [Austen Allred](https://www.anchorterminal.com/investors/austen-allred/)

## Questions

### Who is Antoine Chaffin?

Antoine Chaffin is member of Technical Staff; decision-model research contributor.

### What does Perplexity make?

Anchor Terminal lists pplx-decider and pplx-decider-flash from Perplexity.

### Who has invested in Perplexity?

The sources our research read name Elad Gil, Nat Friedman, Bob Muglia, Pieter Abbeel, Yann LeCun, Andrej Karpathy, Ashish Vaswani, Amjad Masad, Clem Delangue, New Enterprise Associates, Databricks, Susan Wojcicki, Paul Buchheit, Soleio, IVP, NVIDIA, Bezos Expeditions, Bessemer Venture Partners, Factorial Capital, Kindred Ventures, Tobi Lutke, Naval Ravikant, Balaji Srinivasan, Guillermo Rauch and Austen Allred.

### How are Antoine's tools graded?

pplx-decider is graded B, 68.2 out of 100; pplx-decider-flash is graded B, 68 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://www.linkedin.com/posts/antoine-chaffin_i-wanted-to-brag-about-how-we-went-from-564-activity-7513562457974517761-V8Z7
- https://www.linkedin.com/in/antoine-chaffin/
- https://www.linkedin.com/posts/majerry_another-week-another-new-model-perplexitys-activity-7513288902976151552-4Hs0
- https://www.linkedin.com/in/majerry/
- https://x.com/perplexity_ai
- https://www.linkedin.com/company/perplexity-ai/
- https://docs.perplexity.ai/docs/resources/discussions
- https://docs.perplexity.ai/docs/decisions/quickstart

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched.