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Exceev Research · 2026 edition - The AI Tool Atlas

A field guide to the companies building the AI stack—from model labs and agent harnesses to coding tools, inference, evaluation, security, and creative engines.

Tools + product families
343
Market categories
15
Open-source entries
131

01 / Signal

Four truths hiding inside the noise.

01

The open layer is infrastructure

Frameworks, local runtimes, and agent harnesses are disproportionately open; consumer apps and hosted builders are overwhelmingly proprietary.

02

Open weights ≠ open source

A downloadable model can still restrict use, hide training data, and omit training code. The atlas keeps that label separate.

03

Harnesses are the new interface

The durable advantage is shifting from chat UI to the loop around the model: tools, permissions, memory, sandboxes, traces, and resumability.

04

Vibe coding is splitting in two

Prompt-to-app products optimize time-to-demo; coding agents optimize change quality inside real repositories. The overlap is growing, but the jobs differ.

02 / Directory

Search the stack.

Filter the complete directory by company, capability, category, or access model.

343 results

  • Open source
  • Open weights
  • Source available
  • Hybrid
  • Proprietary
Model labs & providers

OpenAI

OpenAI · Frontier model lab

ChatGPT · GPT APIs · Codex · Sora · Voice · Agents SDK

HybridStatus: Active. Opens the official website in a new tab.
Model labs & providers

Anthropic

Anthropic · Frontier model lab

Claude · Claude Code · Agent SDK · MCP

HybridStatus: Active. Opens the official website in a new tab.
Model labs & providers

Google DeepMind

Google · Frontier model lab

Gemini · Veo · Imagen · Lyria · Gemma

HybridStatus: Active. Opens the official website in a new tab.
Model labs & providers

Meta AI

Meta · Model lab

Llama · Meta AI · SAM · AudioCraft

Open weightsStatus: Active. Opens the official website in a new tab.
Model labs & providers

Mistral AI

Mistral AI · Model lab + API

Le Chat · Mistral models · Codestral · La Plateforme

HybridStatus: Active. Opens the official website in a new tab.
Model labs & providers

xAI

xAI · Frontier model lab

Grok · Grok API · Aurora

HybridStatus: Active. Opens the official website in a new tab.
Model labs & providers

Cohere

Cohere · Enterprise model provider

Command · Embed · Rerank · North

HybridStatus: Active. Opens the official website in a new tab.
Model labs & providers

DeepSeek

DeepSeek · Model lab + API

DeepSeek Chat · Reasoner · Coder · API

Open weightsStatus: Active. Opens the official website in a new tab.
Model labs & providers

Qwen

Alibaba Cloud · Model family + assistant

Qwen · Qwen Chat · Qwen Code · Wan

Open weightsStatus: Active. Opens the official website in a new tab.
Model labs & providers

Amazon AI

AWS · Model lab + cloud

Nova · Titan · Bedrock · SageMaker · Q

ProprietaryStatus: Active. Opens the official website in a new tab.
Agent harnesses & runtimes

OpenAI Agents SDK

OpenAI · Agent SDK

Agents · tools · handoffs · guardrails · tracing

Open sourceStatus: Active. Opens the official website in a new tab.
Agent harnesses & runtimes

Claude Agent SDK

Anthropic · Agent harness SDK

Claude Code loop as Python/TypeScript library

HybridStatus: Active. Opens the official website in a new tab.
Agent orchestration

Google ADK

Google · Multi-agent SDK

Agents · workflows · tools · evaluation · deployment

Open sourceStatus: Active. Opens the official website in a new tab.
Agent orchestration

LangGraph

LangChain · Graph orchestrator

Stateful graphs · durable execution · human-in-loop

Open sourceStatus: Active. Opens the official website in a new tab.
Agent orchestration

CrewAI

CrewAI · Multi-agent framework

Crews · Flows · tools · memory

Open sourceStatus: Active. Opens the official website in a new tab.
Agent orchestration

Microsoft Agent Framework

Microsoft · Enterprise agent SDK

Successor to AutoGen + Semantic Kernel patterns

Open sourceStatus: Active. Opens the official website in a new tab.
Agent orchestration

LlamaIndex Workflows

LlamaIndex · Data-centric orchestration

Agents · workflows · connectors · LlamaCloud

Open sourceStatus: Active. Opens the official website in a new tab.
Agent orchestration

Pydantic AI

Pydantic · Typed agent framework

Type-safe agents · tools · evals · graphs

Open sourceStatus: Active. Opens the official website in a new tab.

03 / Method

What “all” means in a moving market.

In

Included

AI-native products, model providers, developer infrastructure, agent systems, and specialist generation platforms with an active public presence.

Out

Excluded

Conventional SaaS with a bolted-on AI feature, thin wrappers, abandoned projects, stealth companies, and every individual model checkpoint or SKU.

Read

License labels

Open source means code under an OSI-style license. Open weights and source available are separate. Hybrid combines a meaningful open component with a closed service.

Limit

Living index

No finite list can prove completeness in this market. This is a high-signal snapshot checked against official product pages and repositories, and maintained as a living index.

Research spine

Official product pages, documentation, repositories, changelogs, release feeds, and license files are the publication standard. Comparative indexes are used only to discover candidates.

A decision map, not a ranking. Classification describes access to the core product; a public repository alone does not make an entire product open source.