Baseten vs Modal

Goodfire Launches Internal AI Agent Monitors

Goodfire, a startup specializing in AI interpretability, launched on Thursday a new type of AI agent monitor that inspects a model's internal signals rather than reading its output, aiming to detect rogue behaviors more efficiently and at a fraction of the cost. The monitors are available to customers of Baseten, an AI model hosting platform. Baseten's Base Labs had previously announced a safety partnership with Goodfire and Hugging Face. Goodfire's approach uses small probes that scan a model's internal activations at each step, triggering a closer AI review only when flagged. In tests on the Kimi K3 model, Goodfire's monitors caught 94% of malicious hacking sessions and cost about $51 for 1,500 sessions, compared to $233 for a cheaper model and $10,000 for a top-tier one. The company positions the solution for open models, which can be stripped of safeguards, and sees it as critical for inference-time guardrails.

• Goodfire launched internal activation monitors for AI agents on October 8, 2026.
• Monitors are available to Baseten customers.
• In tests on Kimi K3, monitors caught 94% of malicious hacking sessions.

Announcing our partnership with OpenAI

Baseten announces a partnership with OpenAI, as featured on their blog.

Baseten, Hugging Face, Goodfire Partner for AI Safety

Baseten's research arm, Base Labs, announced a partnership with Hugging Face and Goodfire AI to establish a safety standard for open-weight AI models. The collaboration aims to develop and publish methods for training and monitoring these models, making safety an integrated feature rather than an afterthought. This comes amid rising concern over 'abliteration,' a technique that removes safeguards from open models, with Hugging Face listing over 6,000 such models. The companies have not detailed technical specifics, but Goodfire's expertise in AI interpretability is expected to play a key role. This initiative seeks to leverage openness as an advantage for safety, providing transparent controls and encouraging community contributions.

• Baseten launched a safety infrastructure standard via Base Labs.
• Partnership with Hugging Face and Goodfire AI announced.
• Hugging Face hosts over 6,000 abliterated models.

Modal Hits $1B ARR, Raises $750M Series D at $15.75B Valuation

Modal, an AI infrastructure startup, announced it has crossed $1 billion in annualized run rate and raised a $750 million Series D round at a $15.75 billion valuation, led by Accel. The company's usage has tripled since its Series C and grown more than 15x year-over-year. Modal's Sandboxes product, launched in 2023 in response to developers using LLMs to generate code, has become a $300 million run rate product on its own, with nearly 3 billion sandboxes spun up and scaling to a million concurrent. The funding round marks Modal's transition from an infra unicorn to an infra decacorn, positioning it as a key player in the AI infrastructure space.

• Modal raised a $750M Series D at a $15.75B valuation, led by Accel.
• Modal crossed $1B in annualized run rate.
• Usage has tripled since Series C and grown over 15x year-over-year.

Runtime recap: the full keynote, VM Sandboxes, Modal Clusters, and more.

Modal announces a runtime product update with VM Sandboxes and Modal Clusters, as highlighted in a blog post.

Modal Labs closing in on $750M round at $15.75B valuation

AI inference infrastructure provider Modal Labs is nearing a $750 million funding round led by Accel at a $15.75 billion valuation, according to a source. This would more than triple its valuation from $4.65 billion in May. The round comes amid surging demand for inference services, with other startups like Baseten, Fireworks, and Fal also raising at higher valuations. Modal Labs, founded in 2021 by Erik Bernhardsson and Akshat Bubna, provides infrastructure for training and running AI models without managing servers. The company has surpassed $300 million in annualized revenue as of May. The funding talks follow a security incident in July where a customer's data was compromised, but Modal's platform was not breached.

• Modal Labs is nearing a $750 million funding round led by Accel at a $15.75 billion valuation.
• The round would more than triple Modal Labs' valuation from $4.65 billion in May.
• Modal Labs has surpassed $300 million in annualized revenue as of May.