GPT-5.5 vs Claude Haiku 4.5
Compare GPT-5.5 and Claude Haiku 4.5 side-by-side. See comparisons of price, response speed, accuracy, and file support to choose the best model for your task.
Overview
GPT-5.5 vs Claude Haiku 4.5 Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
OpenAI / GPT-5.5
maxDescription
OpenAI's frontier model is built for complex professional work. GPT-5.5 takes on demanding coding, deep reasoning, and analysis across very large inputs. It reads text and images, searches the web for current information, and lets you dial its reasoning effort up or down depending on how hard the problem is. Priced at the premium end of OpenAI's range, and built to earn it.
Anthropic / Claude Haiku 4.5
maxDescription
The fastest model in the Claude family, and the cheapest. Haiku 4.5 handles coding, analysis, and writing at speed, reads images and documents, and can show its reasoning when a task needs it. It holds less context than the larger Claude models, and its knowledge is about a year older. Built for volume and quick turnaround rather than the hardest problems.
About
About
Capabilities
Capabilities
Comparison
Why Use GPT-5.5 and Claude Haiku 4.5?
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OpenAI / GPT-5.5
maxFrontier-Level Coding
OpenAI positions this as its model for the most complex professional work, with coding as the headline use. Handles large codebases, multi-step engineering tasks, and production-quality output.
Highest-Rated Reasoning
OpenAI's own model documentation rates its reasoning Highest, the top of the scale. Reasoning tokens are supported, so the model thinks before it answers, and you control how much thinking it does.
Large Context Window
1,050,000 tokens, among the largest available anywhere. Load an entire codebase, a full research corpus, or a large document set and ask questions across all of it. Prompts above 272,000 input tokens are billed at a higher rate.
Long-Form Professional Writing
Built for output that ships, not quick drafts. Writes up to 128,000 tokens in a single response, which covers long reports, full documentation sets, and extended technical writing without splitting the job up.
Live Web Research
Web search is a supported tool, so it can pull current information into an answer rather than working only from what it was trained on. Its knowledge cutoff is 1 December 2025, so anything more recent needs that search.
Text & Image Input
Reads text and images. OpenAI's documentation lists image as input-only and states that audio and video are not supported. File search is supported, so it can work across uploaded documents.
Anthropic / Claude Haiku 4.5
maxLower-Cost Coding
Writes, debugs, and explains code across languages at a fraction of the cost of flagship models. Built for routine changes, quick fixes, and high-volume work. Complex refactors are where it reaches its limit.
Fast Reasoning
Extended thinking lets it work through multi-step problems and show its reasoning, without the wait a larger model would cost you. Solid on problems with a clear route to the answer.
Everyday Document Work
A 200,000-token context window, roughly 150,000 words. Enough for long reports, contracts, and code files. Ask questions across a full document without splitting it up.
Quick Writing & Drafting
Emails, summaries, documentation, and short-form content, returned fast. Output runs to 64,000 tokens in a single response, which covers most drafting work.
Everyday Research
Summarises and compares across the sources you give it. Its reliable knowledge cutoff is February 2025, so it knows less about recent events on its own than newer models.
Image & File Understanding
Text and images. Anthropic's documentation lists text and image input for all current Claude models. Audio and video input are not listed. Reads PDFs, spreadsheets, contracts, and code files.
Why Aymo
Why chat with GPT-5.5 and Claude Haiku 4.5 on Aymo AI?
Aymo gives you more than access to GPT-5.5 and Claude Haiku 4.5—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how GPT-5.5 and Claude Haiku 4.5 performs alongside Claude, Gemini, Grok, and other leading AI models.
One Workspace
Keep all your AI conversations, files, and prompts in a single organized workspace.
Switch Models Instantly
Move between different AI models without restarting your conversation.
Upload Once
Use the same files across multiple AI models without uploading them again.
Save & Organize
Bookmark important chats, organize projects, and return anytime.
Work Together
Share conversations and collaborate with teammates in one place.