David Callies
@dcallies.bsky.social
Open Source Trust & Safety Software Engineer
Reposted by David Callies
🚨 IT'S FINALLY PUBLIC 🚨
I am very, very, very proud of this launch and am so excited to finally share it with everyone! @roost.tools has worked with OpenAI over the past few months to open source a reasoning model that is fine-tuned for Trust & Safety use cases.
I am very, very, very proud of this launch and am so excited to finally share it with everyone! @roost.tools has worked with OpenAI over the past few months to open source a reasoning model that is fine-tuned for Trust & Safety use cases.
Excited to announce here at the @parispeaceforum.bsky.social that, after months of joint technical work together, OpenAI will open source through ROOST one of its main internal models that handles detection and moderation. This will allow anyone or any company to use, test, and study the model.
October 29, 2025 at 12:16 PM
🚨 IT'S FINALLY PUBLIC 🚨
I am very, very, very proud of this launch and am so excited to finally share it with everyone! @roost.tools has worked with OpenAI over the past few months to open source a reasoning model that is fine-tuned for Trust & Safety use cases.
I am very, very, very proud of this launch and am so excited to finally share it with everyone! @roost.tools has worked with OpenAI over the past few months to open source a reasoning model that is fine-tuned for Trust & Safety use cases.
Reposted by David Callies
turns out that with facebook's pdq hashing algorithm, you can hash every image that goes through the firehose. minimal cpu required. fun stuff! then just throw pgvector on top and boom
April 10, 2025 at 4:06 AM
turns out that with facebook's pdq hashing algorithm, you can hash every image that goes through the firehose. minimal cpu required. fun stuff! then just throw pgvector on top and boom
I accidentally wandered into owning facebook/ThreatExchange and feel like an imposter, but these last few months we've had the most external contributors that I can remember. I opened #1761 with the intent of doing it myself, but before I started someone else put up a PR. I think this is good?
[hma] Add the ability to GET the signals from a content_id · Issue #1761 · facebook/ThreatExchange
Problem to solve: After getting a match hit, we want to inspect the actual hash that we matched. However, you can't get, we only have the content_id Getting signal_type requires an extra query on t...
github.com
February 19, 2025 at 12:47 AM
I accidentally wandered into owning facebook/ThreatExchange and feel like an imposter, but these last few months we've had the most external contributors that I can remember. I opened #1761 with the intent of doing it myself, but before I started someone else put up a PR. I think this is good?
Reposted by David Callies
gotta give a shoutout to HMA (hasher-matcher-actioner, aka Open Media Match) developed by great folks like @dcallies.bsky.social that built an open source safety foundation to grow!
Everyone benefits from having access to this kind of technology and a rising tide WILL lift us all.
Everyone benefits from having access to this kind of technology and a rising tide WILL lift us all.
"@roost-tools.bsky.social is creating a repo of open source and interoperable tooling to help online communities of all sizes flourish and keep spammy, illegal, and harmful content off their sites."
v excited to be partnering with @cendemtech.bsky.social @cdteu.bsky.social
cdt.org/insights/cdt...
v excited to be partnering with @cendemtech.bsky.social @cdteu.bsky.social
cdt.org/insights/cdt...
CDT Celebrates the Launch of the Open Source Tooling Initiative ROOST as a step towards Open and Collaborative Trust & Safety Investment
Trust & Safety teams need robust tools to keep users and communities safe online, but building these tools is often costly, time consuming, and requires technical expertise that not all platforms have...
cdt.org
February 10, 2025 at 1:18 PM
gotta give a shoutout to HMA (hasher-matcher-actioner, aka Open Media Match) developed by great folks like @dcallies.bsky.social that built an open source safety foundation to grow!
Everyone benefits from having access to this kind of technology and a rising tide WILL lift us all.
Everyone benefits from having access to this kind of technology and a rising tide WILL lift us all.
Oh noes! All of my forms of communication share common failure points! Even WhatsApp has failed me.
Wife: "Are we just going to have to shout at each other?"
Me: "Yes, as the cavemen did."
Wife: "Are we just going to have to shout at each other?"
Me: "Yes, as the cavemen did."
December 11, 2024 at 7:38 PM
Oh noes! All of my forms of communication share common failure points! Even WhatsApp has failed me.
Wife: "Are we just going to have to shout at each other?"
Me: "Yes, as the cavemen did."
Wife: "Are we just going to have to shout at each other?"
Me: "Yes, as the cavemen did."
Hello world!
I've made a halfhearted attempt in the last year to use threads - www.threads.net/@dcallies, so I've created a new social media account to make a halfhearted attempt to use that too!
I've made a halfhearted attempt in the last year to use threads - www.threads.net/@dcallies, so I've created a new social media account to make a halfhearted attempt to use that too!
David Callies (@dcallies) • Threads, Say more
108 Followers • 3 Threads • I work on making the internet safer by enabling platforms and non-profits to work together to fight harm. See the latest conversations with @dcallies.
www.threads.net
November 17, 2024 at 9:55 PM
Hello world!
I've made a halfhearted attempt in the last year to use threads - www.threads.net/@dcallies, so I've created a new social media account to make a halfhearted attempt to use that too!
I've made a halfhearted attempt in the last year to use threads - www.threads.net/@dcallies, so I've created a new social media account to make a halfhearted attempt to use that too!