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The Evolution of LLMs
Projects The Evolution of LLMs

Interactive LLM timeline

The Evolution of LLMs

A public interactive timeline and story view tracing the evolution of large language models from Transformer to the June 14, 2026 agent, multimodal, open-weight, and research frontier.

This page is a public timeline and story view for the evolution of large language models from the original transformer era through the June 14, 2026 frontier of reasoning-heavy systems, long-context architecture, multimodal models, agentic workflows, open-weight releases, and AI-assisted research.

It is meant to help with orientation. Model progress gets discussed as if it were a blur of leaderboard updates. This page is built to make the lineage, sequencing, and major shifts easier to see.

What it covers

The focus is on important model families, release moments, and the change in what these systems could practically do over time. It is less about every benchmark detail and more about the broader arc from text generation to tool use, reasoning, and agent coordination.

Current snapshot

The June 14, 2026 refresh adds the newest signals since the prior pass: Moonshot's open Kimi K2.7-Code coding model and Z.AI's GLM-5.2 Coding Plan rollout, on top of Claude Fable 5, restricted Claude Mythos 5, Cohere's open North Mini Code, Google's DiffusionGemma 26B A4B, and Gemma 4 12B.

The important read is not just "new smartest model." Claude Fable 5 still anchors the current public ceiling, while Kimi K2.7-Code updates the open coding floor with public weights and first-party long-horizon coding gains over K2.6. GLM-5.2 is the next thing to watch: it has 1M-context Coding Plan access now, but it should stay pending until Z.AI's promised API/chatbot access and MIT weights actually land. The broader May story still matters too: Qwen3.7-Max, Command A+, Composer 2.5, and OpenAI's unit-distance proof all point toward longer agent runs, practical open deployment, and reasoning models reaching into frontier mathematics.

How to use it

Use the overview when you want the frontier snapshot, then move into the timeline or story views when you want a more chronological reading of what changed and why it mattered.