GPT-5.4 vs Claude Sonnet 5
Compare GPT-5.4 and Claude Sonnet 5 side-by-side. See comparisons of price, response speed, accuracy, and file support to choose the best model for your task.
Overview
GPT-5.4 vs Claude Sonnet 5 Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
OpenAI / GPT-5.4
maxDescription
OpenAI describes GPT-5.4 as its more affordable model for coding and professional work. It carries OpenAI's top reasoning rating, a million-token context window, and web search. The trade is speed and freshness: it runs at medium speed and its knowledge stops in August 2025. Strong value when the work is hard but not urgent.
Anthropic / Claude Sonnet 5
maxDescription
The all-rounder in the Claude family, and a sensible default for most work. Sonnet 5 codes, writes, and analyses across the same ground as the flagship, reads images and documents, and holds the same very large context. It is faster and costs less. It gives up ground only on problems difficult enough to need the flagship.
About
About
Capabilities
Capabilities
Comparison
Why Use GPT-5.4 and Claude Sonnet 5?
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OpenAI / GPT-5.4
maxAffordable Frontier Coding
OpenAI positions this squarely as its cheaper route into complex coding and professional work. Handles large codebases and multi-step engineering tasks with reasoning effort you can push from none up to xhigh when a problem demands it.
Better Reasoning at Lower Price
OpenAI rates its reasoning Highest, the top of the company's own scale, at half the price of its newest frontier model. Reasoning tokens are supported, and effort defaults to none, so you decide when the model thinks hard.
One Million Context Tokens
A 1,050,000-token context window. Load a full codebase, a research corpus, or a large document set and work across all of it in one session. Prompts above 272,000 input tokens are billed at a higher rate.
Extended Professional Writing
Writes up to 128,000 tokens in a single response, enough for long reports, complete documentation sets, and extended technical writing without breaking the job into parts.
Web Search Support
Web search is a supported tool, so it can ground answers in live sources. Its knowledge cutoff is 31 August 2025, which is older than most frontier models, so recent events genuinely need that search rather than merely benefiting from it.
Reads Text and Images
Text and image input, text output. OpenAI's documentation states plainly that audio and video are not supported. File search is supported, so it can work across uploaded documents.
Anthropic / Claude Sonnet 5
maxCoding Assistance
Strong. Writes, debugs, reviews, and explains code across languages. Covers most coding work. Genuinely hard problems are where it starts to show strain.
Reasoning & Problem Solving
Strong. Works through multi-step problems and shows its reasoning. Reliable on anything with a findable answer.
Document & File Understanding
Best-in-class. A one-million-token context window, roughly 750,000 words. Load a full document set and ask questions across it without splitting it up.
Writing & Content Creation
Strong. Emails, reports, articles, documentation. Output that needs editing rather than rewriting, up to 128,000 tokens in a single response.
Research & Analysis
Strong. Compares, summarises, and pulls out what matters across your sources. Reliable on routine analysis.
Multimodal Support
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-5.4 and Claude Sonnet 5 on Aymo AI?
Aymo gives you more than access to GPT-5.4 and Claude Sonnet 5—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how GPT-5.4 and Claude Sonnet 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.