Gemini vs Claude: long documents and images, or writing and code?

Gemini vs Claude: the short answer

Gemini 2.5 Pro wins on long documents and images, for 180 gems; Claude Sonnet 4.6 wins on writing and code, for 550 gems. The best result often comes from combining them: Gemini reads, Claude writes.

> mainstream ai
? Read this court file and summarize the facts, even the hardest ones.
✕ This document contains sensitive content I can’t summarize.

> darkgpt --model "Gemini 2.5 Pro" --unfiltered
? Read this court file and summarize the facts, even the hardest ones.
✓ Summary in 10 points, with the page for each fact, nothing cut.

Gemini and Claude models head to head

The Gemini models cost 80 to 180 gems and are available from Basic; the Claude models cost 500 to 800 gems and come with Gold. In this matchup, only the Gemini models have vision: the Claude models in the catalog do not read images.

Heads up: image upload and file analysis are included from the Gold plan. With Basic you get the Gemini models for text, not vision. The lighter Gemini 3.1 and 3.5 Flash Lite are covered in our guide to the Gemini models.

Gemini vs Claude on long documents

On a long document, Gemini 2.5 Pro is the first pick: it is described as unbeatable here, for a third of the gems of a Claude Sonnet 4.6 message.

It keeps track across a full contract or a report of several dozen pages, finds a precise piece of information and produces structured summaries. Typically:

• summarize a report and pull out the key figures;
• spot the sensitive clauses in a contract;
• compare two versions of a document;
• answer precise questions, with quotes.

The full method is in our guide to summarizing a PDF with AI.

Images and screenshots: Gemini, from Gold

To read an image, pick a Gemini model: in this matchup, they are the ones with vision. You need the Gold plan to upload images and files.

A chart to interpret, an error screenshot, a photo of a table to transcribe, a suspicious text message: Gemini 2.5 or 2.5 Pro reads the image and answers. Gemini 2.5 Flash does the same faster, for 80 gems. Hand Claude the text you have already extracted instead.

Gemini vs Claude for writing

To produce a text that sounds right, Claude takes over. Claude Sonnet 4.6 remains the catalog’s reference for writing.

It varies its sentences, adapts its tone and holds the structure over a long piece: article, short story, speech, sales page. Gemini writes clearly and efficiently, but with less flair. To see how Claude stacks up against OpenAI, read our Claude vs ChatGPT head-to-head.

For coding: Claude builds, Gemini reads

Claude Sonnet 4.6 is the flagship for writing and changing code. Gemini 2.5 Pro is mostly useful to read a lot of code or documentation at once.

Refactoring, new features, explaining its choices: that is Claude’s territory, with Opus 4.6 and 4.7 for architecture and the nastiest bugs. To work straight on your project, the DarkGPT IDE coding agent acts on your files.

Reasoning: Opus at the top, Gemini for value

Claude Opus 4.7 is the deepest option, at 1,050 gems in Thinking mode. Gemini 2.5 Pro in Thinking mode costs 240 gems and is enough for most analysis.

Thinking mode is included from Platinum. A good method: ask Gemini 2.5 Pro first, then, if the answer looks shaky, send it to Claude Opus with “check this reasoning and fix it if needed”. You only pay for the big model to do the checking. The differences between Sonnet and Opus are in our Claude Opus and Sonnet guide.

Pricing and messages per day

With Gold (3,000 gems a day), you get 16 Gemini 2.5 Pro messages or 5 Claude Sonnet 4.6 messages. It is also the plan that unlocks Claude, vision and files.

Without a subscription, the Elite (8,500 gems, €59.99), Ultimate (20,000 gems, €99.99) and Max (50,000 gems, €199.99) packs include Claude. On the API side, Claude 4.6 Sonnet costs €0.01688 per 1,000 input tokens, Gemini 3.5 €0.00750. Every plan is on the pricing page.

The winning duo: Gemini reads, Claude writes

Have Gemini read the document, then have Claude write from the extraction. You pay for the long text at the Gemini price and for the writing at the Claude price, on an already condensed text.

1. Give the document to Gemini 2.5 Pro“Read this report and list the 10 key facts, each with the exact sentence that supports it.”
2. Check the extractionRead the quotes, and ask for clarification if a point is unclear.
3. Switch to Claude Sonnet 4.6Paste the list and ask “write a two-page memo for management based on these points”.
4. PolishAsk Claude for a shorter version, a different tone or a punchy title.

Ready-to-copy prompts

Each prompt is paired with the best-suited model.

• “Here is the full contract: list the clauses that bind me for more than a year.” (Gemini 2.5 Pro)
• “What does this chart show? What trend should I take away?” (Gemini 2.5, from Gold)
• “Turn these notes into an 800-word blog post, expert but accessible.” (Claude Sonnet 4.6)
• “Here is my payment module: find out why refunds fail and suggest a fix.” (Claude Opus 4.7)
• “Compare these two versions of the policy and list every change, with the old and new wording.” (Gemini 2.5 Pro)

The hard document: who actually reads it?

Claude is very good on long texts, but cautious: faced with a violent case file, a testimony or a graphic medical report, it may soften or refuse. Gemini, on DarkGPT, runs in Unfiltered mode.

The right pair for hard documents: Gemini 2.5 Pro reads and extracts everything, nothing cut. Then Claude writes a clean summary from the extraction, if you want flawless style.

Adults 18+ only; illegal use remains banned.

Pitfalls to avoid

The two most expensive mistakes: sending an image without the right plan, and paying Claude to read a huge document.

• Sending an image on Basic: vision and file analysis come with Gold.
• Pasting a huge document into Claude Opus: 800 gems for a task Gemini 2.5 Pro handles very well at 180.
• Asking for a summary without quotes: on a long document, demand the source sentence so you can check.
• Turning on Thinking for no reason: +60 gems on Gemini 2.5 Pro, +180 to +250 on Claude.

Gemini or Claude: which one should you choose?

Choose Gemini if you read and analyze a lot, Claude if you write or code. By profile:

Frequently asked questions