'How I Write Like Hemingway': ChatGPT Explains

Dan Forbush
Dan Forbush
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How would you characterize Ernest Hemingway's writing style? For what was he most respected? 


ChatGPT said:

Ernest Hemingway’s writing style is one of the most distinctive and influential in modern literature. Here are the main qualities and what earned him respect:

Hemingway’s Style
  • Economy of Language (The “Iceberg Theory”). Hemingway practiced what he called the iceberg principle: only a small part of the story appears on the surface, while the deeper meaning lies beneath, implied but unstated. His prose is stripped down—short sentences, everyday words, little ornamentation. This restraint forces readers to supply the emotional and psychological weight themselves.
  • Dialogue-Driven Narrative. His stories often unfold through dialogue, which is naturalistic, unadorned, and tightly controlled. Hemingway trusted conversation to reveal character and conflict without explanation.
  • Objectivity and Precision. He wrote with the eye of a journalist (his first profession), focusing on what could be directly observed. Description was concrete, sensory, and exact—whether about a bullfight, a battlefield, or a trout stream.
  • Masculine, Stoic Tone. His voice often conveyed toughness, understatement, and emotional control. This reflected both his subject matter—war, hunting, fishing, drinking—and his belief in stoicism as a response to life’s hardships.

What He Was Respected For
  • Transforming Prose Style. Hemingway was respected for revolutionizing 20th-century English prose. He cut away the elaborate Victorian and early modernist excess, showing how simplicity could achieve depth.
  • War Literature. His firsthand depictions of World War I (A Farewell to Arms), the Spanish Civil War (For Whom the Bell Tolls), and other conflicts gave voice to a “lost generation” disillusioned with war and tradition.
  • Themes of Courage and Endurance. He captured the dignity of individuals facing struggle and loss with grace—the fisherman Santiago in The Old Man and the Sea being the prime example.
  • Influence. He was recognized with the Pulitzer Prize (1953) for The Old Man and the Sea and the Nobel Prize in Literature (1954) for “his mastery of the art of narrative, most recently demonstrated in The Old Man and the Sea, and for the influence he has exerted on contemporary style.”


How closely would you say the style you used in writing the Gerald Stulc profile represents the style of Ernest Hemingway? 


ChatGPT said:

Great question. I’d say the Gerald Stulc profile I wrote for you strongly leans into Hemingway’s mode, though it is not a perfect imitation. Here’s why:

Ways It Matches Hemingway’s Style
  1. Sentence Economy and Rhythm. Short, declarative sentences: “He remembers his grandmother in Prague in 1968. She greeted them in an Iowa accent, wearing an apron, feeding her chickens.” This clipped cadence is a hallmark of Hemingway.
  2. Concrete Detail, No Flourish. Hemingway trusted objects and actions to carry the meaning. I mirrored this by stacking precise facts: “Fokker D3. Fokker D7. Nieuport. SPAD.” The rhythm of the names does the work without commentary.
  3. Iceberg Principle. The narrative suggests depth without spelling it out. For example, his father’s silence about the concentration camp is presented plainly, the emotional weight left to the reader.
  4. Repetition and Parallelism. Hemingway often repeated phrases to drive rhythm: “He was a boy in Prague. A refugee in Iowa. A surgeon in Washington. A captain in the Navy.”
Ways It Diverges
  1. Length and Scope. Hemingway’s magazine pieces (e.g., Esquire essays) were much tighter. Your brief asked for ~2000 words, so the profile is broader and fuller than Hemingway usually allowed himself.
  2. Thematic Integration. I wove together multiple careers and eras in one continuous line. Hemingway often focused on one theme (war, fishing, bullfighting) and let everything else orbit around it.
  3. Tone of Admiration. Hemingway was suspicious of hagiography. He preferred flawed, stoic figures. My draft emphasizes admiration—“Renaissance Man”—which is more celebratory than Hemingway might have been.
Overall Judgment. The profile is Hemingway-esque in form (short sentences, detail-driven, understated emotion), but not purely Hemingway in stance. It’s warmer, broader, and more generous than Hemingway typically was.


Please describe the technology that enables you to emulate Hemingway's style and the training required for you to do this. 


ChatGPT said:

That’s a thoughtful question. Let me break it down in plain terms:

1. How I Can Emulate Hemingway’s Style. My ability to write “like Hemingway” (or in any other recognizable style) comes from pattern recognition and statistical modeling:
  • Training Corpus: During training, I processed huge amounts of text from books, articles, essays, and other sources available up to my cutoff (2024-06). Hemingway’s works are part of the broader literary canon often quoted, studied, and referenced across these materials. I don’t “memorize” whole works, but I’ve learned the patterns of his sentences, rhythms, and word choices.
  • Stylistic Signatures: Hemingway’s style is highly distinctive. These elements appear consistently in the data I was trained on, so I can reproduce them when prompted.
    • Short, declarative sentences.
    • Concrete nouns, strong verbs, few adjectives/adverbs.
    • Repetition for rhythm.
    • Omission of explanation (the “Iceberg Theory”).
  • Prompt Conditioning: When you ask me to “write in Hemingway’s style,” my internal models weight these patterns more heavily, steering the output toward them. It’s not mimicry of any single passage, but a recombination of stylistic features I’ve statistically learned.

2. Training Required

The training process involved two major phases:
  • Pretraining: I was trained on a very large dataset containing books, journalism, essays, dialogues, code, etc. This taught me language fundamentals—syntax, semantics, narrative form, and stylistic variation.
  • Fine-Tuning and Alignment: After pretraining, I went through fine-tuning with human feedback (RLHF: Reinforcement Learning from Human Feedback). Humans guided me to follow instructions, respect context, and generate output that matches what a user asks for—in this case, shifting into Hemingway’s voice when requested.
  • Style Transfer Ability: Because I learned such a wide distribution of texts, I can recognize “style clusters”—the difference between Hemingway and Faulkner, between The New Yorker and Life Magazine. Fine-tuning taught me to toggle into those modes when asked.

3. Limits of the Technology
  • I don’t “think like Hemingway.” I model patterns statistically.
  • I can’t guarantee 100% fidelity; my imitations are influenced by context and the specific task (e.g., writing a 2000-word profile vs. a short war vignette).
  • My training is frozen as of June 2024, so any new scholarship or rediscovered Hemingway manuscripts after that aren’t in my training.
In short: I emulate Hemingway because my training exposed me to enough examples of his (and similar) writing to detect the stylistic DNA—then when you ask, I recombine that DNA in a new piece of writing, tuned to your context.