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ChatGPT vs. Claude: The Ultimate Comparison

ChatGPT (GPT-5.6) vs. Claude (Opus 5) compared: models, pricing, features, coding, and writing quality. Which AI chatbot is better?

FHFinn Hillebrandt
AI Tools
ChatGPT vs. Claude: The Ultimate Comparison
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ChatGPT and Claude are the two most powerful AI chatbots on the market. But which one is better?

To find out, I extensively tested both tools and compared them across model quality, features, coding, writing style, pricing, and usability.

The result:

It depends on what you want to do. Both tools have evolved massively since 2024 and are now on par in many areas.

TL;DRKey Takeaways
  • Claude Opus 5 has been Anthropic's new coding and enterprise flagship since July 24, 2026: close to Fable 5's frontier performance, at roughly half the price, with a 1M token context window
  • Since July 9, 2026, GPT-5.6 Sol leads on agentic workflows with 88.8% on Terminal-Bench 2.1 and offers more integrated features like GPT Image 2, Canvas, and GPTs
  • Both offer web search, code execution, file uploads, and agent features. For everyday use, both are excellent. Many professionals use both in parallel

Comparison Table

Here are the key features and plan details of ChatGPT Plus and Claude Pro side by side:

FeatureChatGPT PlusClaude Pro
Price (per month)$20$20
Web searchYesYes
Code executionYesYes
Image recognitionYesYes
Image generationChatGPT uses GPT Image 2YesNo
Audio and video modesYesNo
Canvas / ArtifactsCanvasArtifacts
Custom chatbotsGPTsProjects
File uploadYesYes
Coding agentCodex AgentClaude Code
Models (top tier)GPT-5.6 Sol/Sol Ultra/Terra/Luna, GPT-5.5 / 5.5 Pro, 5.5 Instant, o3 / o4-miniClaude Opus 5, Sonnet 5, 4.8 Opus (legacy), 4.6 Opus/Sonnet, 4.5 Haiku
Max. context window1M tokens (GPT-5.5, GPT-5.6)1M tokens (Opus 5)
PlansFree, Go, Plus, Pro, Business, EnterpriseFree, Pro, Max, Team, Enterprise
AccessWeb, Desktop, iOS, Android, APIWeb, Desktop, iOS, Android, API
YesPartialNo

1. Model Quality: Tie

Both providers have excellent models right now. Claude Fable 5 still leads the SWE-bench Verified coding benchmark, as the chart below shows. Since July 24, 2026, Claude Opus 5 has joined the lineup as the new coding and enterprise flagship: close to Fable 5's frontier performance, at half the price, and the successor to the previous Opus 4.8. Since July 9, 2026, GPT-5.6 Sol has been OpenAI's new flagship across ChatGPT, ChatGPT Work, Codex, and the API, reaching 88.8% on Terminal-Bench 2.1 and leading the Artificial Analysis Coding Agent Index ahead of Fable 5. On the harder SWE-Bench Pro test, though, Sol still trails both Claude Mythos 5 and Fable 5, as the chart below shows. GPT-5.5 remains available in parallel as a workhorse.

The two most important coding benchmarks show how clearly Anthropic leads on coding right now:

Claude Fable 5 leads SWE-bench at 95.0%; GPT-5.6 Sol posts 64.6% on Pro

Models:
GPT-5.6 Sol
GPT-5.5
Claude Fable 5
Claude Opus 4.8
Claude 4.6 Sonnet
o4-mini
Sources: Anthropic, OpenAI, Vals AI
|
CC BY 4.0
gradually.ai
Benchmark5.6 SolGPT-5.5Fable 5Opus 4.84.6 Sonneto4-mini
SWE-bench--82.6%95.0%88.6%79.6%68.1%
SWE-bench Pro64.6%58.6%80.0%69.2%----

In my experience, Claude Opus 5 has slight advantages in:

  • Long, nuanced texts
  • Complex reasoning over large contexts
  • Following detailed instructions
  • Code quality on larger projects

GPT-5.6 Sol excels at:

  • Multimodality (images, audio, video)
  • Speed on simple tasks
  • Broad general knowledge
  • Integration with the OpenAI ecosystem

1.1 Context Window

Both providers now offer very large context windows. With Claude, 1 million tokens has been standard since Opus 4.7 in April 2026 (without the earlier tiered surcharge above 200K). On the OpenAI side, GPT-5.6 Sol reaches up to 1.05 million tokens.

Older GPT models (like GPT-4o or o3) cap out at 128,000 to 200,000 tokens, which can hit its limits with very long documents or large codebases.

1.2 Reasoning

Both platforms offer specialized reasoning models. ChatGPT has o3 and o4-mini, while Claude offers "Extended Thinking" in its 4.x models. Both approaches allow models to think step-by-step on complex problems.

2. Features: ChatGPT Wins Narrowly

ChatGPT still has the edge when it comes to pure feature count. The following features are not available in Claude:

  • Image generation (ChatGPT uses GPT Image 2)
  • Canvas (collaborative work on documents and code)
  • GPTs (the GPT Store offers thousands of specialized chatbots)
  • Audio and video modes

Claude has other strengths:

  • Artifacts: Claude can create and display interactive content like websites, charts, and applications directly in chat
  • Projects: You can organize knowledge and files in projects and use Claude as a persistent assistant
  • MCP (Model Context Protocol): An open standard that allows Claude to connect with external tools and data sources

Both now offer web search, code execution, and file uploads.

3. Coding: Claude Wins

When it comes to programming, Claude has the edge. And not just because of model quality.

With Claude Code, Anthropic offers a specialized coding agent that works directly in the terminal and can implement complete projects. Combined with the massive context window (1M tokens), Claude can understand and work with entire codebases.

ChatGPT counters with the Codex agent and Canvas. Canvas is particularly useful for iteratively editing code snippets. The Codex agent can work asynchronously in the background.

In practice, many developers use both: Claude Code for larger projects and refactoring, ChatGPT for quick questions and prototyping.

4. Writing Quality: Claude Wins

In terms of text quality, Claude still has an advantage. Claude's texts sound more natural, repeat less, and follow writing style instructions better.

GPT-5.5 has improved significantly compared to GPT-4, but still tends toward more generic phrasing and occasional repetition.

For blog articles, newsletters, and other longer texts, Claude is my first choice.

5. Pricing: ChatGPT Offers More Options

ChatGPT offers significantly more flexibility with six plans:

  • Free ($0): Basic usage with GPT-5.6 Terra access
  • Go ($8/month): More messages and access to advanced features
  • Plus ($20/month): Full access to GPT Image 2, Canvas, and higher limits
  • Pro ($200/month for the top tier): Maximum limits and access to all models. Since April 2026, there is also a cheaper Pro entry tier with 5x Plus limits for $100/month
  • Business ($25/user/month): Team features and privacy
  • Enterprise (custom pricing): For large organizations

For all plan details, see our ChatGPT pricing comparison.

Claude offers five plans:

  • Free ($0): Claude Sonnet 5 with limited messages
  • Pro ($20/month): Access to Claude Opus 5, higher limits, Projects
  • Max (from $100/month): 5x or 20x higher usage limits than Pro, for power users
  • Team ($25/user/month): Team features and higher limits
  • Enterprise (custom pricing): For large organizations

A big advantage of ChatGPT: The Go plan at $8 a month offers an affordable entry point that Claude does not have. Claude Pro and ChatGPT Plus cost about the same, roughly $20 a month.

6. Usability & Availability: Tie

In terms of usability, the differences have narrowed significantly since 2024. Claude now offers:

  • Editing prompts after the fact
  • Sharing chat histories
  • Desktop apps for Mac and Windows, plus iOS and Android apps
  • Official availability in the EU

ChatGPT can still be used without logging in.

Both tools work in multiple languages, with ChatGPT offering slightly more detailed language settings.

My Conclusion

The question "ChatGPT or Claude?" cannot be answered universally. Both tools are at an extremely high level in 2026.

I personally use both daily and divide them as follows:

  • Claude for: Writing blog articles, programming (via Claude Code), complex analyses, anything with long contexts
  • ChatGPT for: Image generation, quick web searches, brainstorming, Canvas for iterative work

If you only want one tool: ChatGPT Plus is more versatile. If you primarily write or code: Claude Pro.

The best approach is to try both free versions and decide from there.

Frequently Asked Questions About ChatGPT vs. Claude

FH

Finn Hillebrandt

AI Expert & Blogger

Finn Hillebrandt is the founder of Gradually AI, an SEO and AI expert. He helps online entrepreneurs simplify and automate their processes and marketing with AI. Finn shares his knowledge here on the blog in 50+ articles as well as through the AI Business Club.

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