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o1-pro vs Claude 3 Opus

Compare pricing, context windows, and strengths for o1-pro by OpenAI and Claude 3 Opus by Anthropic - and see how to put either to work in Appaca.

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o1-pro

A high-compute version of the o1 reasoning model, trained with reinforcement learning to think before answering and produce consistently stronger multi-step reasoning across math, science, coding, and analysis tasks.

View o1-pro
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Claude 3 Opus

The most intelligent Claude 3 model, built for highly complex reasoning, analysis, and open-ended problem solving across any domain.

View Claude 3 Opus

o1-pro vs Claude 3 Opus at a glance

Specs and pricing side by side, from the Appaca AI models directory.

Spec o1-pro Claude 3 Opus
Provider OpenAI Anthropic
Model type Text Text
Context window 200K tokens 200K tokens
Input price $150 / 1M tokens $15 / 1M tokens
Output price $600 / 1M tokens $75 / 1M tokens
Status Current Superseded by Claude 4.1 Opus
Key differences

How o1-pro and Claude 3 Opus differ

What the numbers mean in practice when choosing between o1-pro and Claude 3 Opus.

  • Claude 3 Opus is 90% cheaper on input tokens ($15 vs $150 per million), which adds up quickly in document-heavy workloads.

  • Claude 3 Opus is 88% cheaper on output tokens ($75 vs $600 per million) - the bigger factor for tools that generate long documents.

  • Both models offer the same 200K tokens context window.

  • Claude 3 Opus has been superseded by Claude 4.1 Opus - for new builds, consider the newer model first.

Strengths side by side

Where each model shines, according to benchmarks and provider positioning.

o1-pro

1. Maximum-compute o-series model

  • Uses significantly more compute per query compared to o1.
  • Produces deeper, more reliable reasoning chains.
  • Best suited for high-stakes tasks that need correctness over speed.

2. Trained with reinforcement learning for deliberate thinking

  • Explicit "think-before-answer" architecture.
  • Excels at complex reasoning requiring multi-step analysis.

3. Very strong at math, science, coding, and technical proofs

  • Handles long derivations, algorithm design, and difficult logic problems.
  • Produces structured and explainable reasoning trails.

4. Great for multi-turn reasoning workflows

  • Responses API optimized: can think over multiple internal turns before responding.
  • Ideal for agentic reasoning pipelines.

5. Large context window

  • 200,000-token context for large documents, multi-file review, and long reasoning traces.

6. Multimodal input (text + image)

  • Can analyze images for mathematical diagrams, charts, handwritten content, UI layouts, etc.
  • Output is text only.

7. Consistency, reliability, and depth

  • Designed for situations where accuracy matters more than latency or cost.
  • Strong error-checking and self-correction abilities.

Claude 3 Opus

1. Intelligence & Reasoning

  • Highest capability in the Claude 3 family
  • Near-human comprehension and fluency
  • Excels at MMLU, GPQA, GSM8K, advanced reasoning tasks

2. Complex Problem Solving

  • Best for research, strategy, multi-step planning
  • Handles ambiguous, open-ended tasks with ease

3. Vision & Multimodal Capabilities

  • Strong chart/graph understanding
  • Processes documents, technical diagrams, and dense visual data

4. Recall & Long-Context Reasoning

  • Near-perfect recall (>99% on NIAH benchmark)
  • Handles very large documents and multi-file workflows

5. Enterprise-Grade Accuracy

  • Significantly reduced hallucinations
  • High correctness rate for factual queries
Appaca

Use o1-pro or Claude 3 Opus - or both

Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by o1-pro or Claude 3 Opus - connected to your real data and ready for your whole team. No code, no deployment.

Describe it, and it's built

Tell the Appaca agent the internal tool you need and it builds a working app powered by o1-pro or Claude 3 Opus. No code, no API keys, no deployment.

Switch models without rebuilding

Start on o1-pro, test the same tool on Claude 3 Opus, and keep whichever performs better - the rest of your app stays exactly as it is.

Automated for the whole team

Schedule tools to run on autopilot - daily digests, weekly reports, real-time triggers - and share them with your whole team from one workspace.

Describe it, and it's built

Tell the Appaca agent what your team needs and it builds a working app powered by o1-pro or Claude 3 Opus - connected to the tools you already use.

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FAQs

Is o1-pro cheaper than Claude 3 Opus?

Claude 3 Opus is generally cheaper: $15 input / $75 output per million tokens, versus $150 / $600 for o1-pro. Actual cost depends on how many tokens your workload reads and writes.

Which has the larger context window, o1-pro or Claude 3 Opus?

They are equal: both o1-pro and Claude 3 Opus support a 200K tokens context window.

Should I use o1-pro or Claude 3 Opus?

It depends on the job. Compare the pricing, context window, and strengths above against your workload - and remember the choice isn't permanent. In Appaca you can build a tool on o1-pro, test the same tool on Claude 3 Opus, and switch at any time without rebuilding anything.

Can I use o1-pro and Claude 3 Opus without writing code?

Yes. Appaca is a no-code AI workspace: describe the internal tool your team needs and the Appaca agent builds it as a working app powered by o1-pro, Claude 3 Opus, or any other model in the directory - with a built-in database, team access, and integrations. No API keys to wire up and nothing to deploy.

Build AI tools with o1-pro or Claude 3 Opus

Describe the tool your team needs and get a working app powered by the model you choose - with a built-in database, team access, and integrations. No code, no deployment.