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Maxim AI

Free plan APISelf-hostedWeb

What Maxim AI is

Maxim AI is an evaluation and observability platform for teams building and operating AI agents. Its prompt IDE lets teams experiment with prompts, models, tools, and context, manage prompt versions, create low-code prompt chains, and deploy prompts without code changes. Teams can simulate agents across scenarios and assess quality using predefined or custom metrics. For production, the platform provides workflow traces, live issue debugging, online evaluations, and alerts for regressions. Evaluation options include LLM-as-a-judge, statistical, programmatic, and human reviewers, with synthetic and custom multimodal datasets. Product managers can define and analyze evaluations in a no-code interface, while developers can use SDKs, a CLI, and webhooks. SDKs are listed for Python, TypeScript, Java, and Go. Maxim is available on the web, through an API, and as self-hosted software; enterprise self-hosting is available in a VPC. The free Developer plan includes up to three seats, one workspace, up to 10k monthly logs, and three-day retention. Professional costs $29 a month per seat, and a 14-day trial is available.

Who it suits

It suits cross-functional AI product and engineering teams that need to evaluate and monitor agents. Product managers can use the no-code evaluation workflow, while developers can use SDKs, a CLI, and webhooks.

What it does well

Supports custom metrics and human evaluators.
Includes production traces and regression alerts.
No-code evaluation workflow is available.
SDKs cover Python, TypeScript, Java, and Go.
Enterprise offers VPC deployment and data isolation.

What to know first

Developer plan has three-day data retention.
Developer plan is limited to three seats.
Professional costs $29 a month per seat.

Limits

The free Developer plan is limited to 3 seats, 1 workspace, 10k logs per month, 3-day data retention, and 3 datasets with 100 entries each. Professional is $29/user/mo and includes up to 100k monthly logs and 7-day retention; the 14-day trial is available.

Plans

Plan	Billed and limits	Price
Developer	Forever · Up to 3 seats · 1 workspace · Up to 10k logs per month · 3-day data retention · Email support	Free
Professional	Billed monthly; /seat /month · Unlimited seats · Up to 3 workspaces · Up to 100k logs per month · 7-day data retention · Simulation runs · Online evals · Email support	$29 a month
Business	Billed monthly; /seat /month · Unlimited workspaces · Up to 500k logs per month · 30-day data retention · RBAC · PII management · Scheduled runs · Custom dashboards · Private Slack support	$49 a month
Enterprise	Contact us · Custom SSO · In-VPC deployments · Custom log limits and data retention · Audit logs · Custom SLAs and infosec reviews · Advanced compliance · Custom BAAs · Data isolation · Dedicated CSM	On request

As getmaxim.ai lists them, read 2 Oct 2026. The maker's own page has the final word.

Getting started

Visit the Maxim AI website.
Choose the free Developer plan or review the paid plans; a 14-day trial is available.
Use the web interface, API, or self-hosted deployment option.
Start evaluations in the no-code UI or use the SDKs, CLI, or webhooks.

Verdict

Maxim AI brings prompt work, agent evaluation, and production observability into one platform. Its free plan has limits on seats, workspace count, logs, and retention; enterprise deployment and controls are listed separately.

Questions

Is Maxim AI free?

Yes. Its Developer plan is free and billed forever.

How much does a paid plan cost?

Professional costs $29/user/mo, billed monthly. Business costs $49/user/mo, billed monthly; Enterprise pricing is available by contacting the company.

What platforms does Maxim support?

The listed platforms are web, API, and self-hosted.

What does the free plan include?

Developer includes up to 3 seats, 1 workspace, 10k monthly logs, 3-day data retention, and email support.

Can Maxim be self-hosted?

Yes. Self-hosting is listed as a platform, and Enterprise includes in-VPC deployments.

Which integrations are listed?

Integrations include LangChain, LangGraph, OpenAI, OpenAI Agents, LiveKit, Crew AI, Agno, LiteLLM, Anthropic, Bedrock, and Mistral.

Facts from Maxim AI's own pages

Audience: The product is designed for cross-functional AI teams, including product and engineering teams; product managers can define, run, and analyze evaluations without code. · getmaxim.ai, 2 Oct 2026
Company: The company page describes Maxim as building enterprise-grade AI evaluation and observability infrastructure; the site footer identifies H3 Labs Inc. · getmaxim.ai, 2 Oct 2026
Developer access: Maxim supports SDKs, a CLI, webhooks, and SDKs for Python, TypeScript, Java, and Go; it also says the evaluation workflow is available through a no-code UI. · getmaxim.ai, 2 Oct 2026
Enterprise controls: Enterprise features listed include custom SSO, in-VPC deployments, audit logs, data isolation, and custom SLAs and infosec reviews. · getmaxim.ai, 2 Oct 2026
Evaluators and data: The platform offers prebuilt and custom LLM-as-a-judge, statistical, programmatic, and human evaluators, plus synthetic and custom multimodal datasets. · getmaxim.ai, 2 Oct 2026
Founded: 2023 · getmaxim.ai, 28 Sept 2026
Headquarters: San Francisco, California, United States · getmaxim.ai, 28 Sept 2026
Integrations: The site lists LangChain, LangGraph, OpenAI, OpenAI Agents, LiveKit, Crew AI, Agno, LiteLLM, Anthropic, Bedrock, and Mistral integrations. · getmaxim.ai, 2 Oct 2026
Notable limits: The Developer plan includes up to 3 seats, 1 workspace, up to 10k monthly logs, 3-day data retention, and a limit of 3 datasets with 100 entries each. · getmaxim.ai, 2 Oct 2026
Product: Maxim is an end-to-end evaluation and observability platform for simulating, evaluating, and monitoring AI agents. · getmaxim.ai, 2 Oct 2026
Production monitoring: The observability features include workflow traces, live issue debugging, online evaluations, and alerts for regressions. · getmaxim.ai, 2 Oct 2026
Prompt experimentation: Its prompt IDE supports testing prompts, models, tools, and context, prompt versioning, low-code prompt chains, and prompt deployment without code changes. · getmaxim.ai, 2 Oct 2026
Security and compliance: The maker states that Maxim is SOC 2 Type II, ISO 27001, HIPAA, and GDPR compliant, and offers enterprise self-hosting in a VPC. · getmaxim.ai, 2 Oct 2026
Simulation and evaluation: Teams can simulate agents across diverse scenarios and measure quality with predefined and custom metrics. · getmaxim.ai, 2 Oct 2026
Support: Developer and Professional plans list email support, Business lists private Slack support, and Enterprise lists a dedicated customer success manager. · getmaxim.ai, 2 Oct 2026