Chalk
San Francisco, California, United States
What it is
Chalk is a production AI platform that brings together data context, model runtime, and tools for developing and evaluating models and agents. Its feature store and federated database engine can resolve features from streams, databases, and APIs at query time, making connected data available during inference. Runtime capabilities include model serving, GPU workloads, agent sandboxes, and a model gateway for several provider types and OpenAI-compatible endpoints. Teams can also use evaluations, traces, notebooks, and fine-tuning. Chalk can be deployed in AWS, GCP, or Azure, with self-hosted data-plane workloads inside the customer's cloud; a Chalk-hosted option is also described. The company says agent sandboxes use gVisor isolation and can restrict outbound network access by hostname, CIDR, and port. Chalk identifies data engineers, MLOps teams, AI/ML engineers, data scientists, and AI platform engineers as audiences. It announced completion of a SOC 2 Type I audit in March 2023, with the report available by request. Pricing is available on request.
For and against
For
- Resolves features from streams, databases, and APIs at query time.
- Includes model serving, GPU workloads, and agent sandboxes.
- Supports AWS, GCP, and Azure deployments.
- Sandbox outbound access can be restricted by hostname, CIDR, and port.
- Offers evaluations, traces, notebooks, and fine-tuning.
Against
- Pricing is available on request.
- SOC 2 Type I report is available by request.
The verdict
Chalk combines data access, serving, and model-development tools for production AI work. Deployment options and sandbox controls are described, while pricing and the SOC 2 Type I report require a request.
Who it suits
Chalk is aimed at data engineers, MLOps teams, AI/ML engineers, data scientists, and AI platform engineers building production models or agents. Teams can consider it for self-hosted cloud deployments or Chalk-hosted use.
On the record
- Company location
- Chalk lists offices in San Francisco and New York.chalk.ai · read 3 Oct 2026
- Compliance
- Chalk announced completion of a SOC 2 Type I audit in March 2023 and says the report is available by request.chalk.ai · read 2 Oct 2026
- Data sources
- Chalk says it can resolve features using data from streams, databases, and APIs at query time.chalk.ai · read 3 Oct 2026
- Evaluation
- Chalk lists evals, traces, notebooks, and fine-tuning among its tools for testing and improving models and agents.chalk.ai · read 3 Oct 2026
- Feature store
- Chalk lets teams define features and manage versions, then serve computed context at inference time.chalk.ai · read 3 Oct 2026
- Integrations
- The CLI documentation lists integration kinds including PostgreSQL, Snowflake, BigQuery, Kafka, MySQL, Redshift, and Databricks.docs.chalk.ai · read 3 Oct 2026
- Intended users
- Chalk presents use cases including fraud detection, payments, underwriting, recommender systems, search and ranking, and dynamic pricing.chalk.ai · read 3 Oct 2026
- Learning tools
- The platform includes evaluations, traces, notebooks, and model fine-tuning.chalk.ai · read 2 Oct 2026
- Live context
- Its feature store and federated database engine serve context from connected data sources at inference time.chalk.ai · read 2 Oct 2026
- Managed security
- The self-hosted comparison says Chalk-hosted deployments are managed by Chalk with fine-grained access controls and SOC 2 Type II, ISO 27001, and GDPR compliance.chalk.ai · read 3 Oct 2026
- Model providers
- The Model Gateway supports provider kinds including OpenAI, Anthropic, Gemini, Vertex, Bedrock, Cohere, Mistral, and OpenAI-compatible endpoints.docs.chalk.ai · read 3 Oct 2026
- Product
- Chalk describes its data platform as providing building blocks for machine learning, with an experience for developers.chalk.ai · read 3 Oct 2026
- Runtime
- The platform includes model serving, GPU compute, sandboxes for agents and code, and a model gateway.chalk.ai · read 3 Oct 2026
- Sandbox security
- Chalk says agent sandboxes use gVisor isolation and allow customers to restrict outbound network access by hostname, CIDR, and port.chalk.ai · read 2 Oct 2026
- Self-hosting
- Chalk offers self-hosted deployment, where data, features, and models stay in the customer’s infrastructure; the page says it supports fully air-gapped deployments.chalk.ai · read 3 Oct 2026
- SOC 2 report
- Chalk’s 2023 announcement says it completed a SOC 2 Type I audit and customers can contact [email protected] for a copy of the report.chalk.ai · read 3 Oct 2026
- Support
- Chalk’s startup program offers accepted teams hands-on support from forward-deployed engineers.chalk.ai · read 3 Oct 2026
