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Ideogram AI Guide 2026: Product Mockups, Text Rendering, and API Automation Akool AI Voice Generator Review 2026: API Alternatives for Developers GLM 4.6 API Guide 2026: Build Chinese-English Agents with Tool Calling Google Veo3 API Guide 2026: Batch Video Generation, QA, and Fallbacks AI Lip Sync Tools Comparison 2026: Developer Guide for Localization Pipelines Claude Opus 4.8 vs Opus 4.7: Real API Benchmark Results for Developers Opus 4.8 vs Opus 4.7 Coding Test: What Changed for Developers? Opus 4.8 vs Opus 4.7 for Agents: JSON, Tool Use, and Structured Output Gemini 2.5 Flash-Lite for RAG, Agent Routing, and Cost per Successful Task Gemini 2.5 Flash-Lite for Support Automation and Ticket Triage Gemini 2.5 Flash-Lite Use Cases: The Practical Automation Tier for Developers Claude Jupiter v1-p vs GPT-5.5 Benchmark: Real API Test on Reasoning and Coding Claude Jupiter v1-p vs Claude Opus 4.7 vs Sonnet 4.6: Live API Test Claude Jupiter v1-p vs Claude Opus 4.7 vs Sonnet 4.6: Live API Test Claude Code Pricing 2026: Pro vs Max vs Team vs API Costs Claude Opus 4.7 vs DeepSeek V4 Pro: Real API Compatibility and Coding Benchmark Gemini CLI Complete Guide 2026: Repo Automation, CI Agents, and Multi-Model Routing Ideogram AI Guide 2026: Brand Design Automation, API Workflows, and Alternatives GLM 4.6 API Guide 2026: Agents, RAG, Tool Calling, and Bilingual Apps WAN 2.2 Animate Tutorial 2026: Character Consistency, Shot Control, and API Workflows Google Veo3 API Guide 2026: Production Video Pipelines, Prompts, Pricing, and Fallbacks AI API Pricing Comparison 2026: Text, Image, Video, Caching, and Router Costs Codex CLI Installation Guide 2026: Windows, macOS, Linux, Proxies, and CI Setup How to Get a Claude API Key in 2026: Secure Setup for Teams, CI, and Alternatives Gemini Advanced Review 2026: Is It Worth It for Coding, Research, and API Teams? Claude Code Pricing Guide 2026: Team Agent Budgets, API Fallbacks, and Cost Control Seedance 2.0 Pricing: Convert 46 CNY per Million Tokens to Cost per Second Qwen2.5-Omni Guide 2026: Real-Time Voice, Vision, and Multimodal Agents Kimi K2 Thinking Guide 2026: Reasoning Workflows, Evals, and Cost Control Google Veo3 API Guide 2026: Batch Video Pipelines, Pricing, and Fallbacks
AI Context Window Comparison (2026): GPT, Claude, Gemini ...
Crazyrouter · 2026-05-01 · via Crazyrouter Blog (English)

AI Context Window Comparison (2026): GPT, Claude, Gemini Token Limits by Model#

When developers search for context window limits, they usually want one thing: a clear comparison table. This guide shows the practical token limits for major models in 2026.

Context Window Comparison Table#

ModelContext WindowBest For
GPT-5.4128KGeneral app workflows
Claude Opus 4.7200KComplex reasoning, long documents
Claude Sonnet 4.5200KCoding, writing, large context
Claude Haiku 4.5200KFast extraction, classification
Gemini Pro1M+Extremely long documents, multimodal context
Gemini Flash1M+Fast long-context processing
Kimi K2128K+Chinese reasoning
Qwen 2.5128KBudget-friendly long context
DeepSeek V3128KCost-efficient long docs

What Does Context Window Actually Mean?#

The context window is the maximum amount of text (measured in tokens) a model can process at once. Larger context windows matter when you are working with:

  • Full codebases
  • Long contracts or reports
  • Multi-document RAG workflows
  • Large chat histories
  • PDF analysis

Which Model Should You Choose?#

NeedRecommended Model
Best balance of quality and long contextClaude Sonnet
Strongest reasoning over long docsClaude Opus
Largest context possibleGemini Pro
Cheapest long-context optionDeepSeek / Qwen
Chinese long-context workKimi K2

Access Through Crazyrouter#

All major long-context models are available through Crazyrouter.

FAQ#

Does larger context always mean better performance?#

No. A larger context window lets you send more text, but model quality still matters. Gemini has the largest context, but Claude often performs better on reasoning quality.

How many words is 200K tokens?#

Roughly 150,000 words in English, depending on formatting and language.

Which model is best for codebase analysis?#

Claude Opus and Sonnet are usually the best balance of context size and code quality.