GPT-5.4 Mini vs Claude Opus 5.5
Compare GPT-5.4 Mini 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 Mini 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 Mini
proDescription
OpenAI's more affordable mid-tier model, built to balance capability and cost at scale. GPT-5.4 Mini handles chat, coding assistants, and agent workflows with reliable instruction following and solid multi-step reasoning. It reads text and images across a large context window, and supports web search and function calling. A practical production choice when you want current GPT quality without the flagship price.
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
Why Use GPT-5.4 Mini and Claude Opus 5.5?
Aymo gives you more than access to individual models—it provides a complete multi-model AI workspace designed for productivity.
OpenAI / GPT-5.4 Mini
proCoding Assistants At Scale
OpenAI positions it for coding assistants and agent workflows that run at volume. Handles routine generation, review, and multi-step engineering tasks reliably, with the cost profile to run them frequently.
Multi-Step Reasoning
Delivers dependable instruction following and multi-step reasoning with adjustable effort. Aimed at consistent performance across diverse tasks rather than the deepest reasoning of the frontier models.
Room For Large Codebases
A large context window, enough for extensive documents and substantial codebases in a single session. Ample for most production work without splitting the input into separate requests.
Everyday Professional Writing
Handles emails, documentation, reports, and general content reliably. Built for clear, correct output at scale rather than the polished long-form writing of the top-tier models.
Live Web Search Support
Supports web search as a tool, so it can ground answers in live sources rather than working only from training data. Useful when a task depends on current information.
Text And Image Input
Reads text and images, so you can send screenshots, charts, 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.
Why Aymo
Why chat with GPT-5.4 Mini and Claude Opus 5.5 on Aymo AI?
Aymo gives you more than access to GPT-5.4 Mini and Claude Opus 5.5—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how GPT-5.4 Mini and Claude Opus 5.5 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.