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Get started freeGPT-5.1 vs o1-pro
Compare GPT-5.1 and o1-pro. Build AI products powered by either model on Appaca.
Model Comparison
| Feature | GPT-5.1 | o1-pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Model Type | text | text |
| Context Window | 400,000 tokens | 200,000 tokens |
| Input Cost | $1.25/ 1M tokens | $150.00/ 1M tokens |
| Output Cost | $10.00/ 1M tokens | $600.00/ 1M tokens |
Stop choosing. Use both.
With Appaca you don't have to pick — build apps that are powered by GPT-5.1, o1-pro, for your specific use case.
Build your first app freeStrengths & Best Use Cases
GPT-5.1
OpenAI1. Configurable Reasoning for Agentic Tasks
- Built to excel in autonomous or semi-autonomous coding workflows, with adjustable reasoning effort for planning, refactoring and debugging.
2. Fast Multi-Modal Input with Large Output
- Accepts both text and image inputs while producing text outputs.
- Offers up to 128 k output tokens, allowing long responses and code generation across multiple files.
3. Large Context & Knowledge Cut-Off
- 400 k token context window supports processing large codebases or documents.
- Knowledge cut-off of Sep 30 2024 ensures familiarity with recent tools and frameworks.
4. Reasoning Token Support
- Provides explicit support for reasoning tokens, enabling developers to fine-tune the balance between reasoning depth and speed.
o1-pro
OpenAI1. 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.
Prompts to Get Started
Use these prompts to power AI products you build on Appaca. Each works great with the models above.
Best for GPT-5.1
textTest Automation Strategy
Write a test automation strategy defining scope, tooling, and maintenance approach.
Interactive Quiz (Diagnose Challenges + Recommend Solutions)
Design a website quiz that helps your persona self-diagnose challenges and recommends next steps aligned to your USP.
Social Listening Strategy (Signals + Opportunities)
Develop a social listening strategy to monitor persona challenge conversations and surface opportunities to highlight your USP.
Best for o1-pro
textCategory Broadcast Email
Send a targeted broadcast email to customers interested in a specific product category. Drives relevant traffic.
Feedback Request Message
Write a message requesting specific, actionable feedback on your work.
Experiential Marketing Campaign (Immersive Brand Story)
Design an experiential campaign that immerses your persona in your brand story and demonstrates how your USP turns challenges into opportunities.