Srinivas Narayanan

CTO of B2B Applications, OpenAI

[Srinivas Narayanan @snsf]

@schrep Congrats @schrep and the Gigascale team! It's great to see your incredible expertise in scaling novel technologies applied to this sector. Excited to see a new generation of innovation in energy. manufacturing and the physical economy.

[Srinivas Narayanan @snsf]

Introducing GPT-5.5 — a new class of intelligence for real work.

It’s our smartest and most intuitive model yet: stronger at agentic coding, computer use, scientific research, and multi-step work across tools.

You can give it ambiguous, messy, real-world tasks and trust it to plan, use tools, check its work, and keep going.

Now rolling out in ChatGPT and Codex. Coming to API very soon.

https://t.co/On8EG3ejz1

[Srinivas Narayanan @snsf]

Amazing work by @tylernotfound @zach__johnston @thaliaeche and the team on the agent mascots, animations and the overall design polish on workspace agents.

[Simon B. Støvring @simonbs]

Whoever created these icons for the new ChatGPT Agents needs a pay raise.

[Srinivas Narayanan @snsf]

You can now use ChatGPT directly within Google Sheets.

[Ryan Brewer @ryanbrewer]

Excited to announce ChatGPT for Google Sheets! This was a really fun one to work on. Create new sheets, ask questions across tabs and formulas, and make updates directly in your sheets https://t.co/5ZUdm8QESe

[Srinivas Narayanan @snsf]

@vibebuild yes, that's the plan. We mentioned it in the blog as well. "GPTs will remain available while teams test workspace agents with their workflows. Soon, we’ll make it easy to convert GPTs into workspace agents."

[Srinivas Narayanan @snsf]

Very excited to launch workspace agents in ChatGPT today. Teams can now create shared agents powered by Codex that handle complex tasks and long-running workflows.

We have always wanted to build a product that can go beyond helping individuals be more productive to also helping teams be more effective.

Workspace agents are designed for that - they can gather context from the right systems, follow team processes, ask for human approval when needed, and keep work moving across tools/teams.

Available in research preview in ChatGPT Business, Enterprise, Edu, and Teachers plans.

Huge congrats @tarstarr @christinaahuang @_rohanmehta and the workspace agents team!

https://t.co/2AlqtE49ez

[Arena.ai @arena]

Exciting news - GPT-Image-2 by @OpenAI has claimed the #1 spot across all Image Arena leaderboards!

A clean sweep with a record-breaking +242 point lead in Text-to-Image - the largest gap we’ve seen to date.

- #1 Text-to-Image (1512), +242 over #2 (Nano-banana-2 with web-search aka gemini-3.1-flash-image)
- #1 Single-Image Edit (1513), +125 over #2 (Nano-banana-pro aka gemini-3-pro-image)
- #1 Multi-Image Edit (1464), +90 over #2 (Nano-banana-2)

No model has dominated Image Arena with margins this wide.

Huge congratulations to @OpenAI on this major breakthrough in image generation! More performance breakdowns by category in the thread below.

[Srinivas Narayanan @snsf]

Introducing ChatGPT Images 2.0 — a major leap in image generation. Advanced reasoning backed into the creation process, stronger multilingual support, better text rendering,, richer layouts, more precise control and more.
Available in ChatGPT, Codex and the API.

https://t.co/vf54EFL8P4

[Srinivas Narayanan @snsf]

After 3 incredible years, I am leaving OpenAI at the end of next week.

I shared my decision with the OpenAI leadership team at the start of the month and here is a shorter version of what I shared with my team earlier this week.

===
Hi Team,
I have decided to leave OpenAI. The last three years have been an incredible journey that felt more like ten.

Leading the b2b engineering team has been an enormous privilege. With the recent/upcoming product launches, this felt like the right time to step back. I will also fondly remember my prior role leading the Applied Engineering team, from when it was ~40 people on a single floor in the 575 office, when I first started.

We shipped some of the fastest-growing products in history, like ChatGPT and the API, with no real playbook to guide us. This was only possible because of the incredible team we built - you are the most passionate, dedicated, and hard-working colleagues I have ever worked with. You all have inspired me so much, and I’m so proud of what we have built together. I can’t thank you enough!

I am so grateful to @sama @gdb @fidjissimo and the rest of the OpenAI leadership for this opportunity of a lifetime.

I will cherish this time forever during this historic period for technology and society, and I wish you all the very best for the future.

I am looking forward to spending some much-needed time with my aging parents in India before deciding what’s next.

Thanks again. It has been a privilege to be on this journey with you.
===

[Srinivas Narayanan @snsf]

Today we launched a major update to the OpenAI Agents SDK to help developers build and deploy long-running, durable agents in production.

You can now build your own Codex-style agents using powerful primitives for modern agents - file and computer use, skills, memory and compaction.

The harness and compute are now split - you can bring your own sandbox or use partners like Blaxel, Cloudflare, Daytona, E2B, Modal, Runloop, and Vercel for container execution.

The harness is open-source and so you can inspect and customize it for your needs.

Try it out!
https://t.co/MXPwV83mAl

Really fantastic work by @stevendcoffey and the API team!

[Srinivas Narayanan @snsf]

Really sad to see this attack at Sam’s home. Violence like this is completely unacceptable. I’ve known @sama and worked with him closely. He is a visionary, thoughtful and deeply committed leader. Sending Sam, Ollie, and their family strength and support.

[Sam Altman @sama]

I wrote this early this morning and I wasn't sure if I would actually publish it, but here it is:

https://t.co/7Dw9UFpeep

[Srinivas Narayanan @snsf]

Codex is now available with pay as you go pricing on ChatGPT Business and Enterprise plans.

[OpenAI Developers @OpenAIDevs]

Bring Codex to your team without fixed seat costs.

We’re rolling out usage-based pricing for Codex in ChatGPT Business and Enterprise plans, so teams have a more flexible way to get started.

[Srinivas Narayanan @snsf]

ChatGPT voice mode now available via CarPlay

[OpenAI @OpenAI]

ChatGPT is now available in CarPlay.

The voice mode you know, now available on-the-go.

Rolling out to iPhone users running iOS 26.4+ where CarPlay is supported.

[Srinivas Narayanan @snsf]

ChatGPT for Excel is now available worldwide (except EU)

[Ryan Brewer @ryanbrewer]

Excited to share that ChatGPT for Excel is now available worldwide (except EU consumer plans). Give it a try and let us know what you think! More updates rolling out soon with improvements across the board https://t.co/5ZUdm8Q72G

[Srinivas Narayanan @snsf]

Plugins in Codex

[OpenAI Developers @OpenAIDevs]

We're rolling out plugins in Codex.

Codex now works seamlessly out of the box with the most important tools builders already use, like @SlackHQ, @Figma, @NotionHQ, @gmail, and more.

https://t.co/PQDsLqHGA6

[Srinivas Narayanan @snsf]

GPT-5.4 mini and nano models are now available!

[OpenAI Developers @OpenAIDevs]

We’re introducing GPT-5.4 mini and nano, our most capable small models yet.

GPT-5.4 mini is more than 2x faster than GPT-5 mini. Optimized for coding, computer use, multimodal understanding, and subagents.

For lighter-weight tasks, GPT-5.4 nano is our smallest and cheapest version of GPT-5.4.
https://t.co/6E6cP6saWT

[Srinivas Narayanan @snsf]

gpt-5.4 is a fantastic model and we are seeing great adoption! Try it out!

[Greg Brockman @gdb]

gpt-5.4 has ramped faster than any other model we've launched in the API: within a week of launch, 5T tokens per day, handling more volume than our entire API one year ago, and reaching an annualized run rate of $1B in net-new revenue.

it's a good model, try it out!

[Srinivas Narayanan @snsf]

A nice post from our API team explaining how to build agents with a hosted computer environment using the Responses API

[OpenAI Developers @OpenAIDevs]

📣 Technical lessons from building computer access for agents

Making long-running workflows practical required tightening the execution loop, providing rich context via file systems, and enabling network access with security guardrails.

Here's how we equipped the Responses API with a computer environment:

https://t.co/dMIlJN2iqA

[Srinivas Narayanan @snsf]

I’m super excited to welcome @iwebst, Michael D’Angelo, and the Promptfoo team to OpenAI.

As enterprises deploy AI coworkers into real workflows, evaluation, security, and compliance become foundational requirements.

Promptfoo has built a great set of tools for automated security testing and red-teaming, security and evaluation built into development workflows, and integrated reporting and traceability to meet growing governance, risk, and compliance expectations.

We are excited to integrate these capabilities into Frontier and bring them to our customers.

https://t.co/GSrWRfpYWG