Hy4 Preview vs GPT-5 Nano
Compare Hy4 Preview and GPT-5 Nano side-by-side. See comparisons of price, response speed, accuracy, and file support to choose the best model for your task.
Overview
Hy4 Preview vs GPT-5 Nano Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
Tencent / Hy4 Preview
proDescription
Tencent's early release of its next Hy model, the successor to Hy3, built for productivity work. Hy4 Preview targets software engineering, office and data work, game development, and science, and Tencent reports its largest generation-over-generation gain to date. It reads text, holds a very large context, and reasons deeply by default, with a faster direct mode. Open weights under an Apache 2.0 license.
OpenAI / GPT-5 Nano
lightDescription
OpenAI's smallest and cheapest GPT-5 model, built for speed above all. GPT-5 Nano is made for summarisation, classification, and other well-defined tasks that run at high volume. It reads text and images, with adjustable reasoning effort. Reasoning depth is shallow by design and its knowledge is dated. The trade is cost: it is among the cheapest models in the catalog.
About
About
Capabilities
Capabilities
Comparison
Why Use Hy4 Preview and GPT-5 Nano?
Aymo gives you more than access to individual models—it provides a complete multi-model AI workspace designed for productivity.
Tencent / Hy4 Preview
proLong-Horizon Coding Gains
Tencent reports its biggest gains in long-horizon coding and front-end work, plus an internal blind test of engineering tasks where it edged out several open-model rivals.
Deep Thinking By Default
Reasons deeply by default on math, coding, and analysis, with a direct mode for faster replies. As a preview, it can over-verify its own work and spend longer than needed.
Room For Large Projects
A very large context window for long codebases, reports, and research. Tencent reports clear improvements in long-context understanding over the previous generation.
Documents And Spreadsheets
Tencent highlights document and spreadsheet generation as clear improvements, with training data built alongside office and finance specialists. Suited to reports, outlines, and structured office deliverables.
Finance And Science Work
Built for financial analysis and scientific research alongside coding, using data shaped by domain specialists. It has no native web search, so current data comes through connected tools.
Text Only Input
Reads and writes text. No image, audio, or video input. Screenshots, diagrams, and scanned pages are outside what this model can read, which rules it out for visual work.
OpenAI / GPT-5 Nano
lightCoding Sub-Tasks
Suited to small, well-scoped coding jobs and to acting as a fast sub-agent inside a larger system, rather than tackling whole problems. Reasoning depth is limited, so keep the scope tight.
Adjustable Reasoning Effort
Reasoning effort runs from minimal through low, medium, and high. Even at higher effort it is a shallow reasoner by design, so it suits speed-sensitive work rather than hard multi-step problems.
Room For Long Documents
A large context window, enough to summarise long reports or classify big batches of text in a single pass without splitting the input into separate requests.
Summarisation And Classification
OpenAI names summarisation and classification as its core uses. Built to process high volumes of text quickly and cheaply rather than to produce polished long-form writing.
Analysis On Older Knowledge
Its training data is dated by current standards, so it is fine for processing text you supply but weaker on recent events, which need live sources rather than the model's own knowledge.
Text And Image Input
Reads text and images, so you can send screenshots or scanned pages alongside your prompt. Output is text only. OpenAI states audio and video are not supported.
Why Aymo
Why chat with Hy4 Preview and GPT-5 Nano on Aymo AI?
Aymo gives you more than access to Hy4 Preview and GPT-5 Nano—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how Hy4 Preview and GPT-5 Nano 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.