322 AI models ranked on Long-Context Reasoning. Each row shows the model’s score next to its cheapest API price per 1M tokens where it has one, so you can weigh quality against cost.
Top model today
GPT-5.2-Codex (OpenAI) leads at 76%, from $1.75 per 1M input.
Each labelled name links to that model’s page. Curated to the cost-efficiency frontier, top scorers and cheapest so labels stay readable; the full field is in the leaderboard table below (and via “select all”). Reasoning models (extended “thinking” before answering) carry a ring around the dot.
Prices are on-demand list rates. Enterprise commitments can be materially lower. Cost per task uses best-effort token usage.
Frequently asked questions
What is the Long-Context Reasoning benchmark?
Measures a model’s ability to retrieve, synthesise and reason across very long inputs spanning tens to hundreds of thousands of tokens, beyond simple fact lookup. Artificial Analysis reports this as AA-LCR; the broader category also draws on evaluations such as RULER and LongBench.
Which AI model scores highest on Long-Context Reasoning?
GPT-5.2-Codex (OpenAI) leads with 76%, from $1.75 per 1M input tokens.
How many models are ranked on Long-Context Reasoning?
322 models carry a Long-Context Reasoning score. Scores come from Artificial Analysis; where a model has a live API price it is verified against LiteLLM and OpenRouter, and models with no current price are listed without one.
OpenAI
Anthropic
MiniMax
Xiaomi
Google
Zhipu
Alibaba
Moonshot
Meta
DeepSeek
xAI
NVIDIA