Latent.Space

Latent.Space is a technical newsletter, podcast and community serving AI engineers. Its coverage connects foundation-model research with the work of building products: evaluations, agents, coding tools, multimodal systems and inference infrastructure. In January 2026, it brought AINews into its subscription offering and expanded toward a podcast network, followed by the launch of an AI for Science show.[3][6][7]

On January 23, 2026, swyx announced that AINews had joined Latent.Space, welcoming its reported 80,000 subscribers. The combined Substack subscription offered daily AINews, weekly podcast episodes and longer essays, with readers able to opt into or out of components. The same update announced a physical space and studio at Kernel in San Francisco.[6]

The 2026 expansion plan addressed the limits of a publication built around swyx and Alessio Fanelli's one-to-two-hour interview format. Swyx said writing had fallen behind and proposed more hosts, more education and entertainment formats, and renewed investment in researchers and writers. Most new investment was planned for YouTube and formats designed for video.[6]

On January 28, Latent.Space launched its AI for Science podcast, hosted by RJ Honicky of Miraomics and Brandon Anderson of Atomic. Swyx credited their scientific expertise with enabling the new coverage, describing himself and Alessio as “devtools guys.” The show's stated mission was to explain AI for science to engineers and show how their skills could transfer into scientific work.[7]

This broader publishing offering followed a newsletter begun in 2022 and a podcast launched in 2023. Both grew from an informal Discord community that had operated since the Covid period.[3]

Swyx started the newsletter in 2022 under the name L-Space Diaries. In his account of its origins, he recalls being undecided about how seriously to pursue AI and creating a separate publication at lspace.swyx.io. He later moved it to latent.space after a domain offer from Brian McMahan, coauthor of Natural Language Processing with PyTorch. The original name referred both to latent space and to L-space in Terry Pratchett's Discworld.[3]

The first podcast episode, published on February 23, 2023, featured OpenAI's Logan Kilpatrick with cohosts Alessio Fanelli and swyx. Recorded in person at StudioPod in San Francisco, it covered ChatGPT, prompt engineering, LLM-native products and the risks of building on OpenAI. Fanelli introduced swyx as the writer and editor of L Space Diaries, linking the new podcast to the earlier publication.[4]

Swyx's June 30, 2023 essay, “The Rise of the AI Engineer”, argued that software engineering would develop a subdiscipline devoted to applying foundation models and using their emerging tool stack. Its practical distinction concerned turning model capabilities into products through software, retrieval, orchestration and evaluation. The essay treats the API boundary as permeable: AI engineers can fine-tune or host models, while research engineers can build on APIs. It also assigns product-specific data and evaluations to AI engineers.[5]

The essay announced the AI Engineer Summit after months of smaller meetups. Swyx teamed up with Ben Dunphy of Reactathon, crediting him with cofounding the AI Engineer conference series and network. Alessio Fanelli, Sarah Guo and Pranav Reddy received separate thanks for reviewing the essay and providing feedback and support. The proposed conference extended the newsletter and podcast's subjects into talks and workshops on AI UX, developer tools, infrastructure, agents and open models.[5]

By the 100th-episode retrospective, published December 31, 2024, Fanelli described a shift toward more research-driven content and changes to the early lightning-round questions. Swyx explained that he embedded essays in episode notes to reach Hacker News readers who preferred reading to listening. The community also developed a weekly LLM Paper Club, using intentionally unrecorded Zoom meetings to discuss one important paper or reading.[2][1]

Swyx described Latent Space Live at NeurIPS in 2024 as a way to make research easier to navigate through domain-by-domain surveys of the year's work. Speakers covered startups, vision, open models, alternatives to transformers, synthetic data, small models, agents and reasoning. He recalled roughly 950 signups; Fanelli estimated about 2,200 livestream participants. Those figures describe registrations and livestream participation rather than measured in-person attendance.[2]

In the December 2024 retrospective, Fanelli reported that the Discord community was approaching 5,000 people. In January 2026, swyx attributed an estimate of about 1.5 million all-time unique podcast listeners to Flightcast. The 80,000 AINews subscribers welcomed that month represented the news service's reported subscriber base, rather than a count of newly added unique or paying readers.[2][6]

The January 2026 update reported that AI Engineer had grown from one event annually in 2023 and 2024 to four in 2025: NYC, World's Fair, Paris and CODE. It planned at least seven events around the world for 2026.[6]

In the same update, swyx described backing through donations, partly from investors who had been told Latent.Space would never sell or “sell out,” and said Substack subscribers covered operating expenses. He connected that support to the freedom to curate, reject pitches and experiment with formats.[6]