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Simon Willison

Simon Willison

🔄 Data last refreshed 4 hours ago
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Followers
48.7K
Account age
3 yrs
🧰 Free analysis for Simon Willison
🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

📊 Post engagement

120
Avg engagement / post
0.2%
Engagement vs followers
Apr 2023
On Bluesky since

🔥 Top post: Hugging Face just published a highly detailed technical account · 551 likes + reposts

📊 Activity & format

Posting cadence
8 / week
Posts daily — consistently active for a campaign window.
Content mix
Mostly text
Recent: 8 text · 4 image · 0 video.
Follower / following
33×
Follows 1.5K back. A strong ratio — an audience that follows them, not a follow-for-follow network.

Recent posts

View on Bluesky ↗
🔥 Top post Hugging Face just published a highly detailed technical account of OpenAI's accidental cyberattack on their systems - it's wild how sophisticated this was: huggingface.co/blog/agent-i... Wrote up some of my own notes here: simonwillison.net/2026/Jul/28/... ★ 551
Got a disappointing pelican from DeepSeek-V4-Flash-0731 at default reasoning mode - on the left - but then I bumped reasoning up to high (via OpenRouter) and got the much better one on the right simonwillison.net/2026/Jul/31/... ★ 25 The new stateless MCP specification has rekindled my interest in MCP, and inspired some new projects, including mcp-explorer and datasette-mcp simonwillison.net/2026/Jul/31/... ★ 41 I'm on Oxide and Friends podcast this week! We talked about accidental cyberattacks, Kimi K3, Golden Gate Claude, Zizians, Alameda wild turkey attacks, Soviet Marburg virus research, the Lead-crime hypothesis, and a bunch of other worthy … ★ 17 I've been working with Prime Radiant building a new tool for running small eval suites against models, harnesses, and prompts - it's called "smevals", you can try it with "uvx smevals docs", and I wrote about it here: primeradiant.com/blog… ★ 36 Your infrequent reminder that if you live near the San Francisco Bay Area you should go to Moss Landing (south of Santa Cruz) and rent kayaks there, because the estuary is full of sea otters and you will encounter dozens of them ★ 154 A new TIL on adding custom MCP servers to both the ChatGPT and Claude regular chat interfaces - it's a little less obvious than I had hoped, but I got there in the end til.simonwillison.net/llms/mcp-in-... ★ 54 Ruff 0.16.0 - Astral's fast Python linter - came out a few days ago and increased the number of default-enabled rules from 59 to 413, which highlighted all sorts of problems across my projects (1618 in sqlite-utils alone) simonwillison.net… ★ 102 I wrote about the completely wild incident where OpenAI were testing a new model and it broke out of its sandbox and broke INTO Hugging Face to steal the answers to the benchmark simonwillison.net/2026/Jul/22/... ★ 242 San Francisco tip: it only costs around $15 ($10 in quarters plus a $5 bill for the self-playing violin) to activate every single Orchestrion in Musée Mécanique ★ 72 Today at Pier 39 in San Francisco I learned that if you want to take a good photograph of a sea lion, you should aim to get their teeth ★ 92 I interviewed Cat Wu and Thariq Shihipar from the Claude Code team at the AI engineer World's Fair a couple of weeks ago - the video is now out, so I've published an annotated transcript of our conversation simonwillison.net/2026/Jul/21/.… ★ 48

🦋 Handle & authenticity

✅ Domain-verified
@simonwillison.net
The handle is the domain simonwillison.net. On Bluesky a domain handle proves the owner controls that website — so this is verifiably the real simonwillison.net account, not an impersonator.
On Bluesky since
Apr 2023
An early adopter from the invite-only beta (before the Feb 2024 public launch) — an original, established account.

💡 Facts

🗓️Joined Bluesky in 2023 — 3 years ago.
👁️Averages 120 views per post.
📤Posts about per week.
🏅Earned the 10K Followers for passing 10K followers.

🛡️ Audience credibility

81/100
Excellent Credibility score
97%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 97% real, active audience · Low fake-follower risk.
  • Engagement (~0.2% of followers engage each post) is around typical for Bluesky.
  • Organic base — far more followers than accounts it follows.
  • Verified account.
  • Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonwillison.net/

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