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§01Use case

To swallow 500 pages at once,
Gemini 3.1 Pro and its 2 million tokens.

2M of real, usable context: Gemini plays in another league for massive document analysis.

When your corpus exceeds 200,000 tokens — a book, a full audit, a hundred contracts — Gemini 3.1 Pro is the only generalist model that keeps the promise. Needle-in-a-haystack tests stay above 95% across the full window. Claude holds well up to 500K, ChatGPT plateaus around 400K.

§02Ranked by reasoning
7 text tools · score out of 10
01
Anthropic
Claude Opus 4.7
9.3
02
OpenAI
ChatGPT (GPT-5.5)
9.2
03
Google
Gemini 3.1 Pro
8.9
04
Anysphere
Cursor
8.8
05
xAI
Grok 4.20 Heavy
8.7
06
Mistral AI
Mistral Le Chat
8.0
07
Perplexity
Perplexity
8.0
Why it matters

Long context changes the nature of the work: you no longer extract, you query. A lawyer loads 80 procedural files; an analyst, the annual report and three comparative years; a researcher, a thesis bibliography. The right tool is no longer the one that answers best — it is the one that retains the most.

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