o4-mini vs Claude 3 Opus
Compare pricing, context windows, and strengths for o4-mini by OpenAI and Claude 3 Opus by Anthropic - and see how to put either to work in Appaca.
o4-mini
A fast, cost-efficient small reasoning model optimized for coding and visual tasks; succeeded by GPT-5 mini.
View o4-miniClaude 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 Opuso4-mini vs Claude 3 Opus at a glance
Specs and pricing side by side, from the Appaca AI models directory.
| Spec | o4-mini | Claude 3 Opus |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Model type | Text | Text |
| Context window | 200K tokens | 200K tokens |
| Input price | $1.1 / 1M tokens | $15 / 1M tokens |
| Output price | $4.4 / 1M tokens | $75 / 1M tokens |
| Status | Current | Superseded by Claude 4.1 Opus |
How o4-mini and Claude 3 Opus differ
What the numbers mean in practice when choosing between o4-mini and Claude 3 Opus.
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o4-mini is 93% cheaper on input tokens ($1.1 vs $15 per million), which adds up quickly in document-heavy workloads.
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o4-mini is 94% cheaper on output tokens ($4.4 vs $75 per million) - the bigger factor for tools that generate long documents.
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Both models offer the same 200K tokens context window.
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Claude 3 Opus has been superseded by Claude 4.1 Opus - for new builds, consider the newer model first.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.
o4-mini
1. Fast and efficient reasoning
- Provides strong reasoning capabilities with significantly lower latency and cost compared to larger o-series models.
- Ideal for lightweight reasoning tasks, logic steps, and quick multi-step thinking.
2. Optimized for coding tasks
- Performs exceptionally well in code generation, debugging, and explanation.
- Useful for IDE integrations, coding assistants, and developer tools with tight latency budgets.
3. Strong visual reasoning
- Accepts image inputs for tasks such as diagram interpretation, charts, UI analysis, and visual logic.
- Great for hybrid text-image reasoning flows.
4. Large 200K-token context window
- Capable of processing long documents, multi-file codebases, or extended analysis.
- Reduces need for chunking or external retrieval pipelines.
5. High 100K-token output limit
- Supports lengthy reasoning sequences, full codebase explanations, or multi-section documents.
6. Broad API compatibility
- Available in Chat Completions, Responses, Realtime, Assistants, Batch, Embeddings, and Image workflows.
- Supports streaming, function calling, structured outputs, and fine-tuning.
7. Cost-efficient for production
- Lower input/output pricing makes it suitable for large-scale deployments, SaaS products, and recurring tasks.
8. Succeeded by GPT-5 mini
- GPT-5 mini offers improved speed, reasoning power, and pricing, but o4-mini remains a strong option for cost-sensitive workloads.
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
Use o4-mini or Claude 3 Opus - or both
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by o4-mini 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 o4-mini or Claude 3 Opus. No code, no API keys, no deployment.
Switch models without rebuilding
Start on o4-mini, 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 o4-mini or Claude 3 Opus - connected to the tools you already use.
Related comparisons
See how o4-mini and Claude 3 Opus stack up against other models in the directory.
FAQs
o4-mini is generally cheaper: $1.1 input / $4.4 output per million tokens, versus $15 / $75 for Claude 3 Opus. Actual cost depends on how many tokens your workload reads and writes.
They are equal: both o4-mini and Claude 3 Opus support a 200K tokens context window.
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 o4-mini, test the same tool on Claude 3 Opus, and switch at any time without rebuilding anything.
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 o4-mini, 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 o4-mini 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.