Lesson 901 of 1596
Working With Gemini's 2M-Token Context Window — Real Use Cases
When a 2M-token window is a superpower and when it just slows you down.
Creators · Model Families · ~7 min read
The premise
A 2M context window unlocks new patterns (whole-codebase reasoning, full transcript analysis) but costs and latency scale fast — use it deliberately.
What AI does well here
- Read an entire codebase or large document in one shot
- Maintain coherence across very long, multi-stage conversations
- Replace some retrieval problems with brute-force context loading
- Process long video and audio transcripts end-to-end
What AI cannot do
- Stay attentive uniformly across the full window — middle-context loss is real
- Stay cheap — long inputs add up fast
- Avoid tokenizer surprises on certain document types
Key terms in this lesson
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