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.
- Claude Fable 5.1 has been Anthropic's most expensive frontier model for long-running agents, coding, and research since September 1, 2026, with a 1M-token context window at $10/$50 per million tokens. Claude Opus 5.5 joined on September 22, 2026 as the cheaper alternative ($4/$20 per million tokens) and, according to Anthropic, matches Fable 5.1 on most work
- GPT-6 Astra remains OpenAI's best model, with a 1.05 million token context window. GPT-6 Sol and GPT-6 Luna joined on September 22, 2026 as cheaper tiers, both 50% cheaper than their GPT-5.6 predecessors
- 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
Both are equal on: web search, code execution, image recognition, file upload, a 1M token context window, and access via web, desktop, iOS, Android and API. The table shows only where they differ:
| Feature | ChatGPT Plus | Claude Pro |
|---|---|---|
| Price (per month) | $20 | $20 |
| Image generationChatGPT uses GPT Image 2 | Yes | No |
| Audio and video modes | Yes | No |
| Canvas / Artifacts | Canvas | Artifacts |
| Custom chatbots | GPTs | Projects |
| Coding agent | Codex Agent | Claude Code |
| Models (top tier) | GPT-6 Astra/Sol/Luna, GPT-5.6 Sol/Sol Ultra/Terra/Luna, GPT-5.5 / 5.5 Pro, 5.5 Instant, o3 / o4-mini | Claude Opus 5.5/5, Sonnet 5.5/5, 4.8 Opus (legacy), 4.6 Opus/Sonnet, 4.5 Haiku |
| Plans | Free, Go, Plus, Pro, Business, Enterprise | Free, Pro, Max, Team, Enterprise |
1. Model Quality: Tie
Both providers have excellent models right now. GPT-6 Astra has been OpenAI's frontier tier since September 3, 2026. Claude Fable 5.1 is generally available, joined on September 22, 2026 by the cheaper Opus 5.5 and on September 28, 2026 by the even cheaper Sonnet 5.5.
In their respective vendor reports, Opus 5.5 scores 66.4% on Terminal-Bench 4.0, ahead of Mythos 5.1 at 60.9%, Astra at 57.9%, and Fable 5.1 at 55.8%. The cheaper Sonnet 5.5 reaches 70.6% according to Anthropic. The runs do not use the same agent setup, so the raw scores still require caution.
The chart below therefore keeps its older uniform benchmark cohort. Claude Fable 5 leads SWE-bench Verified there at 95.0%. GPT-5.6 Sol posts 64.6% in a separate SWE-Bench Pro measurement. Fable 5.1 and Mythos 5.1 are not shown until a methodologically compatible result is available.
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
| Benchmark | 5.6 Sol | GPT-5.5 | Fable 5 | Opus 4.8 | 4.6 Sonnet | o4-mini |
|---|---|---|---|---|---|---|
| SWE-bench Verified | 96.2% | 82.6% | 95.0% | 88.6% | 77.4% | -- |
OpenAI, meanwhile, emphasizes cost efficiency for GPT-6 Sol over Claude. On AutomationBench, a benchmark for business workflows across multiple apps, GPT-6 Sol at xhigh effort outperforms Claude Opus 5 at max effort, according to OpenAI, at just 9% of Opus 5's cost per task. On Agents' Last Exam, GPT-6 Sol at max effort scores 56.4%, above Opus 5's highest score in that evaluation, at 60% lower cost per task.
The gap narrows on pure coding and computer-use benchmarks. On DeepSWE v1.1, GPT-6 Sol at max effort scores 68.8%, within 1.1 percentage points of Claude Fable 5's highest score (69.9% at xhigh effort), at roughly 80% lower cost. On OSWorld 2.0, GPT-6 Sol at xhigh effort scores 60.5%, nearly matching Claude Opus 5 at medium effort (60.3%), also at roughly 80% lower cost.
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-6 Astra, Sol, and Luna, along with the GPT-5.6 family, excel 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. On the OpenAI side, GPT-6 Astra, Sol, and Luna reach 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): Sonnet and Haiku models with limited messages
- Pro ($20/month): Access to Claude Opus 5.5, 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.
