Blaxel
6.5/10Blaxel is a cloud platform for teams building AI products, running agents in microVM sandboxes that hibernate when idle and also hosting agents, MCP servers and batch jobs.
Data last updated November 2026 · Our methodology
Overview
Blaxel is infrastructure built for AI agents. Its core product is sandboxes: hardware-isolated microVMs where agents run code. A sandbox scales to zero about five seconds after it goes idle, can stay in standby indefinitely, and resumes in about 25 ms with its memory and filesystem intact. Around the sandboxes, Blaxel offers serverless agent hosting, MCP server hosting, batch jobs of up to 24 hours, cron jobs, an LLM gateway, persistent volumes and a shared Agent Drive. Developers manage all of this through the bl CLI, the TypeScript, Python and Go SDKs, or an HTTP API. The docs include tutorials for frameworks such as LangChain and CrewAI. Webflow uses Blaxel for live previews in its AI coding agent. Pricing is pure pay-as-you-go with up to $200 in free credits. Sandboxes cost $0.0000115 per GB of RAM per second, and suspended time is not billed. Volumes, snapshots, images and custom domains are billed separately. Account tiers that raise sandbox limits unlock through top-ups. Email support, dedicated support and HIPAA are paid add-ons, and a Custom plan adds private networking, bring-your-own-metal and custom SLAs. Blaxel was in Y Combinator's Spring 2025 batch, raised a $7.3M seed, and was acquired by Baseten in September 2026, which said the product would keep operating. The main limitation is scope: Blaxel is not a general hosting platform. It has no managed databases, no GPUs and no virtual desktops. Hibernation also drops external connections, so agents must reconnect when they wake.
Our Rating
AI Software6.5/10
Hosting & Infrastructure6.5/10
Who Blaxel is best for
Best software for DevelopersGood fit
Developers drive it through SDKs, a CLI and an API to run agent code in sandboxes.
It suits AI SaaS products that need a per-user agent workspace that sits idle most of the time.
There is no base fee, up to $200 in free credits, and the company came out of YC.
Less suited
A Custom plan offers private networking, custom SLAs and SOC 2, but support costs extra.
Pros & Cons
Pros
- Sandboxes hibernate at no compute cost and resume in about 25 ms, keeping their memory and filesystem.
- Billing is per GB-second with no base fee, up to $200 in free credits, and no charge for suspended time.
- It covers more than sandboxes, adding agent hosting, MCP servers, batch jobs and an LLM gateway.
- Each sandbox runs in its own hardware-isolated microVM, and the company reports SOC 2 Type II, ISO 27001 and an optional HIPAA BAA.
Cons
- Paid support is expensive: email support starts at $800 per month plus a share of usage, and the base plan gets community Discord support only.
- There are no GPUs and no virtual desktops for computer-use agents.
- Hibernation drops external connections, so agents have to reconnect to databases and queues when they wake.
- The core platform is closed source, and there is little independent evaluation of it.
- Blaxel was acquired by Baseten in September 2026, which leaves its long-term roadmap uncertain.
Key Features
Not included
- Managed Databases
- Managed WordPress
Blaxel Pricing
Custom
- Custom SLAs
- Dedicated deployments
- Bring-your-own compute
- Private network connectivity
- Custom hardware, up to 256 GB RAM per sandbox
Pay-as-you-go
- All products
- Full observability suite
- Up to $200 in free credits
- Tier 0 (free): 10 sandboxes
- Community support on Discord
- Higher tiers up to 100,000+ sandboxes
- Tier 1 ($20/month minimum top-up): 50 sandboxes
- Tier 2 ($50/month minimum top-up): 200 sandboxes
Frequently Asked Questions
Yes. The Pay-as-you-go plan includes up to $200 in free credits, and you can start without a credit card.
Not for compute. Suspended time is not billed, but snapshot storage costs $0.20 per GB-month.
Yes, through a $250 per month add-on that includes a BAA. The company also reports SOC 2 Type II and ISO 27001.
The Custom plan offers private networking to your VPC and a bring-your-own-metal option. The standard plan is fully managed.
Baseten acquired Blaxel in September 2026 and said the Blaxel product would continue to operate unchanged.
The docs list SDKs for TypeScript, Python and Go, plus the bl CLI and an HTTP API.
Similar Tools
See all alternatives
Amazon's public cloud platform, with over 200 pay-as-you-go services for compute, storage, databases, networking and AI, used by startups through large enterprises and governments.
Vercel Sandbox runs untrusted or AI agent-generated code in isolated Firecracker Linux microVMs on demand. It is aimed at developers building coding agents, code playgrounds and preview tools.
Baseten is an AI inference platform that lets engineering teams serve, scale and train open-weight and custom models on managed multi-cloud GPUs, billed per minute.
Ranked near Blaxel in AI Software
See Blaxel in the listBlaxel is #284 in AI Software by our score.
