Tomáš Srnka

We're proud E2B was selected in the AI 100 list by @CBinsights

@genspark_ai's growth is nothing but impressive - $250M ARR in 12 months. Their Super Agent, capable of running long research sessions, data analysis, or building decks, is powered by E2B. Proud to support one of the fastest-growing AI products of this generation!

Stories like this is why we built E2B. Watching @genspark_ai go from zero to $250M ARR in 12 months on our infrastructure is one of the best feelings in this job. Their Super Agent does deep research, runs analysis, and builds decks. Millions of users, with every session running on E2B: a real, persistent computer for the Super Agent with all the tools it needs. Here's what Kay Zhu, co-founder and CTO of Genspark, had to say about our collaboration: "A 30-step agent run can't start with a 60-second cold start. It has to feel instant. E2B lets us scale to thousands of concurrent sessions, and we couldn't have hit $250M ARR if five of our engineers were building a sandbox platform instead of the agent." Genspark is building one of the defining products of this generation, and we get to be the layer underneath. Hard to ask for more than that.

Learn more: e2b.dev/blog/not-affec…

@synopsi Pretty cool! btw small typo? vaultaire.app/manifesto/ {% if modifiedTime %} {{ modifiedTime | readableDate }} {% endif %}

I learned so much about SEO/ASO in last two months. I used to hate this kind of work, but with the AI agents it becomes much less grueling. vaultaire.app and mdgrok.com are growing their traffic from Google despite the domains' DR being low. Quite cool.

They say NYC has great views. I agree. Once again, big thanks to WingVC and @EricNewcomer for featuring @e2b as one of the 2026 Enterprise Tech 30 companies.

We just signed an enterprise contract with our first publicly traded bank. Incredible work by the team to move this so quickly!! no better time to join @e2b than now

@vojtasTS29 @salingergregor The extension in Petrzalka towards the south end never had the plan for 1435mm or at least not after like 2012.. The 1435mm was part of Ten-T project - zeleznicne.info/pda/pdaview.ph…

@tomassrnka @salingergregor Well yeah, the EU refused to pay for more "future proofed" dual gauge track and that's where it ended.

I'll never understand why no one pushes for rebuilding Wolfsthal-Petržalka

@vojtasTS29 @salingergregor Thats not entirely true. The 1435mm was laid down as plan for tram train within Bratislava, it has nothing to do with Wiener lokalbahnen. However, it was already clear when the construction was ongoing, that it will never be used, hence newer section is again only 1000mm

@salingergregor Many are. Wiener lokalbahnen last tried in like 2007. Bratislava even has track laid between Petržalka and the city to dual gauge to once again allow Viennese tram trains to go there. The problem is that Austrians hate nothing more than branch lines and Slovakians hate investment

@salingergregor Would be cool, but - it would be longest connection between the cities, it would be slower to VIE airport than proposed new branch from Bruck.. so in reality it does not make that much sense. From historical point of view and reconnecting what communists destroyed, yes.

We’re super excited to support @OpenAI as a sandbox partner for the new Agents SDK. Can’t wait to see what you’ll build with the new capabilities!

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! openai.com/index/the-next… Really fantastic work by @stevendcoffey and the API team!

OpenAI x E2B: build your agents with the new OpenAI Agents SDK, powered by E2B sandboxes. We're excited to support OpenAI as a launch partner! The new @OpenAI Agents SDK will now get dedicated sandboxes - perfect for persistent, long-running agents. With E2B, you'll get a custom environment with resource isolation and security boundaries, with no infrastructure setup required. Your agents will be able to: - Edit files and run shell commands in isolated environments - Maintain temporary workspace state across steps - Produce artifacts you can review before publishing - Run multiple sandboxes in parallel for concurrent workloads - Generate frontend output with live preview URLs ... and more, with a few lines of code! Learn more and see the end-to-end example in the thread:

P.S. E2B is hiring - drop me a message if you'd like to join our team. e2b.dev/careers

We’ve spent decades building compute for humans. That’s about to change. I’ve decided to join @E2B to do it. Throughout my career at @Apple, @conduitxyz, and @WishShopping, I’ve worked to deliver fast, reliable, scalable systems that serve users better. But the definition of “user” is shifting.

@aemarcuss @synopsi YXRKT

@synopsi RHQQ2

Let's see how many people lived through this era. Finish this without searching for it: FCKGW

If you want to chat agents and sandboxes, catch the @e2b team or me at the HumanX conference in SF today!

Big news: we're on the 2026 Enterprise Tech 30! We’re proud to be included alongside our customers and partners - and excited to keep building the future together. The ET30 is voted on by 90+ of the top investors, recognizing private companies shaping the future of enterprise technology. Thank you @Wing_VC and @EricNewcomer for including us on the list. Now back to building. wing.vc/et30/list #ET30 @getbasis, @braintrustdata, @browserbasehq, @ExaAILabs, @MadeByGamma, @granaborr, @linearapp, @OpenRouterAI, @tryparallel, @RilletHQ, @ServalAI, @turbopuffer, @WisprFlow, @AbnormalSec, @canva, @clay, @DecagonAI, @elevenlabsio, @FireworksAI_HQ, @glean, @Gong_io, @harvey, @WeAreLegora, @lovable, @n8n_io, @EvidenceOpen, @SierraPlatform, @supabase, @anduriltech, @AnthropicAI, @AppliedInt, @ClickHouseDB, @cursor_ai, @databricks, @OpenAI, @tryramp, @stripe, @SpaceX, and others