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◆ Claude 4.5 Sonnet · ChatGPT (GPT-5) · Gemini 2.5 Pro Deep Think

Long-form Article / Report Writing.

Intent — 5000+ word deep article or technical document

5000+ word articles are a different axis of LLM evaluation: coherence, argument progression, context stability, citation alignment. The three frontier models excel along different dimensions — Claude's coherence, GPT-5's structuring tools, Gemini's massive context for source review.

01

Claude 4.5 Sonnet

◆ Recommended prompt
Write a 6000-word research article on the topic of "How AI image generation changed indie game art pipelines from 2023 to 2026". Cover: (1) Pre-AI baseline workflow + costs (2) 2023 transition with Stable Diffusion 1.5 (3) 2024 Midjourney v6 production-ready leap (4) 2025 ComfyUI + LoRA pipeline maturity (5) 2026 video generation entering pipeline. Use specific examples from real indie games. Tone: industry analyst, data-grounded, concrete numbers where possible. Include a final section on outstanding challenges. Output in markdown with proper h2 / h3 hierarchy.
Open in Claude (paste it)
✓ Strengths
  • **長文連貫性最強**：5000+ 字不掉論點線
  • Editing 方向感最好（你說「第三段太長」它真的會縮）
  • Claude Projects 可以掛參考 PDF 跟長對話 context
✗ Weaknesses
  • Web 搜尋整合弱於 GPT / Gemini（要自己餵資料）
  • 免費版有訊息限制
  • 視覺化／表格生成不如 GPT Canvas
When to use

純創作、深度編輯、嚴格遵守 outline 的長文。

02

ChatGPT (GPT-5)

◆ Recommended prompt
I need to write a 6000-word research article on AI image generation's impact on indie game art (2023-2026). Use Canvas mode so we can iterate. Start by drafting an outline with h2/h3 structure, then we'll fill section by section. Cite specific games, data points, year-over-year comparisons. Tone: industry analyst.
Open in ChatGPT (paste it)
✓ Strengths
  • **Canvas 模式**：long doc 在側欄編輯，不會塞滿 chat
  • Custom GPTs 可以掛特定 style guide / 知識庫
  • Web search 內建（GPT-5 有 deep research）
✗ Weaknesses
  • 比 Claude 略冗長（要明確說「縮短」才會精簡）
  • Canvas 大文件偶爾要等很久才回應
  • Pro 訂閱才有最強 model（GPT-5 Pro / o1 Pro）
When to use

需要 web 搜尋 + 即時引用、需要 Canvas iterate、要做多版本對照時。

03

Gemini 2.5 Pro Deep Think

◆ Recommended prompt
[Attach: 30 indie game postmortem articles, 50 GDC talk transcripts, 200 reddit threads on AI art workflows]

Based on the 280 sources I've attached, write a 6000-word research article: "How AI image generation changed indie game art pipelines from 2023 to 2026". Cite specific games/talks/threads inline. Use specific data when sources provide it. Tone: industry analyst.
Open in Gemini (paste it)
✓ Strengths
  • **1M token context**：可塞 100+ PDF / 完整 codebase 後再寫
  • Multimodal — 同時讀 PDF / 圖 / 影片 / code
  • Gemini App / AI Studio / Vertex 三種接入彈性
✗ Weaknesses
  • 純創作（沒參考材料）不如 Claude / GPT
  • 輸出風格略「正式」缺 Claude 的人味
  • Deep Think 模式回應較慢
When to use

要先看一堆參考材料再下筆 / 跨大量 source 做研究綜述 / 學術 / 政策報告。

◆ Bottom line

Pure writing + editing → Claude 4.5. Structured outlines + version management → GPT-5 Canvas. Need to digest 100+ source docs first → Gemini 2.5 Pro.

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