Claude 4 Opus
The flagship model, focused on deep reasoning, large-scale coding and sustained multi-step agentic workflows.
Claude 4 Opus at a glance
Context window
200K tokens
Input price
$15
per 1M tokens
Output price
$75
per 1M tokens
Why use Claude 4 Opus
Strengths, benchmarks, and where Claude 4 Opus fits in your team's workflow.
- Highest capability in the family: described as “our most powerful model yet” by Anthropic.
- Exceptional at long-running tasks requiring thousands of steps and sustained focus (e.g., continuous codebase work for hours).
- Excellent performance on benchmarks: e.g., SWE-bench 72.5 % and Terminal-bench 43.2 %.
- Designed for complex agentic workflows, deep reasoning, tool use, and large context windows.
- Placed under a higher safety classification (ASL-3) due to its frontier capability and risk profile.
Power your team with Claude 4 Opus
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by Claude 4 Opus - connected to your real data and ready for your whole team. No code, no deployment.
Build internal AI tools
Describe what you need and the Appaca agent builds it - lead scorers, report generators, email drafters - with Claude 4 Opus as the engine. No code, no deployment.
Give Claude 4 Opus your real data
Connect the tools your team already uses - Slack, Notion, Google Sheets, Airtable, and more - so Claude 4 Opus works with real context, not generic answers.
Automate recurring tasks
Schedule Claude 4 Opus to run on autopilot - daily digests, weekly summaries, or real-time triggers - all managed inside your Appaca workspace.
Describe it, and it's built
Tell the Appaca agent what your team needs and it builds a working app powered by Claude 4 Opus - connected to the tools you already use.
Where teams use Claude 4 Opus
See how teams put Claude 4 Opus to work inside Appaca - internal tools and AI agents that work around you.
Sales
Score leads, draft follow-ups, and summarise deals with Claude 4 Opus doing the heavy lifting.
Explore Appaca for SalesMarketing
Draft, repurpose, and report on campaigns in your brand voice - powered by Claude 4 Opus.
Explore Appaca for MarketingOperations
Automate reporting, vendor tracking, and process docs with AI built around your workflow.
Explore Appaca for OperationsMore Anthropic models
Compare other Anthropic models in the Appaca AI models directory - specs, pricing, and use cases for each.
Claude 4.7 Opus
Anthropic's latest frontier Opus model, purpose-built for advanced software engineering, long-horizon agent work, and high-resolution multimodal reasoning.
View modelClaude 4.6 Sonnet
Anthropic's most capable Sonnet model, delivering a full upgrade across coding, computer use, long-context reasoning, agent planning, and professional knowledge work.
View modelClaude 4.5 Sonnet
A frontier-level hybrid-reasoning model excelling at coding, long-horizon tasks, computer use, and domain reasoning with top-tier alignment and reliability.
View modelCompare Claude 4 Opus with other models
See how Claude 4 Opus stacks up against other text models - pricing, context windows, and strengths side by side.
Build internal AI tools with Claude 4 Opus
Describe the tool your team needs and get a working app powered by Claude 4 Opus - with a built-in database, team access, and integrations. No code, no deployment.