GPT-5.4 Nano vs Claude Opus 5.5
Compare GPT-5.4 Nano and Claude Opus 5.5 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 Nano vs Claude Opus 5.5 Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
OpenAI / GPT-5.4 Nano
proDescription
OpenAI's smallest and cheapest current-generation model, built for speed and volume. GPT-5.4 Nano excels at classification, data extraction, ranking, and coding sub-tasks, and works well as a fast sub-agent inside larger systems. It reads text and images, supports web search, and follows instructions reliably. Reasoning depth is shallow by design, traded for very low latency and cost at scale.
Anthropic / Claude Opus 5.5
maxDescription
Anthropic's newest flagship, and the first in its Claude 5.5 family. Anthropic positions Opus 5.5 to perform at the level of its most capable model on most work, while costing meaningfully less to run than the previous Opus. It reads text and images, holds a very large context, and reasons before every answer with adjustable effort. Anthropic calls it their daily driver for serious coding, computer use, and knowledge work, with its knowledge current to mid-2026.
About
About
Capabilities
Capabilities
Comparison
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OpenAI / GPT-5.4 Nano
proCoding Sub-Agents
OpenAI positions it for coding sub-tasks and as a fast sub-agent in multi-model architectures. Built for small, well-scoped jobs run at high frequency rather than whole engineering problems.
Adjustable Reasoning Effort
Reasoning effort ranges from minimal to 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 Inputs
A large context window, enough to classify or extract from big batches of text in a single pass. Ample for the high-volume work it is built for without splitting the input.
Extraction And Ranking
OpenAI names classification, data extraction, and ranking as its core uses. Built to process structured, repetitive text work quickly and cheaply rather than to write long-form content.
Web Search For Current Facts
Supports web search as a tool, so it can pull live information into an answer. Useful in background and real-time systems where the data needs to be current.
Text And Image Input
Reads text and images, so you can send screenshots or scanned pages alongside your prompt. Output is text only. Audio and video are not supported.
Anthropic / Claude Opus 5.5
maxDaily-Driver Coding
Anthropic positions it as its everyday model for serious coding and agentic work, reaching its most capable model's level on most tasks. Built for real software engineering across many steps rather than isolated snippets.
Adaptive Thinking Always On
Reasoning is always on, with an effort dial rather than an off switch, defaulting to medium. Anthropic reports medium effort here, matching the previous Opus at high, so it thinks efficiently rather than at length.
Room For Whole Projects
A very large context window with no smaller default. Anthropic reports stronger long-context management, so instruction following and reasoning hold across a full codebase or a long agent run.
Precise Document Work
Anthropic's strongest Opus for vision and document work: dense filings, charts, screenshots, and diagrams read at high fidelity. It also writes more concisely than the previous Opus, a deliberate change.
Deep Computer Use
Anthropic reports that its best Opus is for computer use, handling multi-step tasks that span several applications and require planning and judgment. Suited to agentic work that operates real software, not just answering questions.
Text And Image Input
Reads text, images, and PDFs in the same prompt, so you can send screenshots, filings, diagrams, or charts alongside your question. Output is text only. Audio and video are not accepted.
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Why chat with GPT-5.4 Nano and Claude Opus 5.5 on Aymo AI?
Aymo gives you more than access to GPT-5.4 Nano and Claude Opus 5.5—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
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