GPT-5.1 vs DeepSeek R1
Compare pricing, context windows, and strengths for GPT-5.1 by OpenAI and DeepSeek R1 by DeepSeek - and see how to put either to work in Appaca.
GPT-5.1
Flagship model for coding, reasoning, and agentic tasks with adjustable reasoning depth and multimodal input/output.
View GPT-5.1DeepSeek R1
A fast, real-time decision-making model optimized for rapid analysis, dynamic adjustments, and responsive AI behavior.
View DeepSeek R1GPT-5.1 vs DeepSeek R1 at a glance
Specs and pricing side by side, from the Appaca AI models directory.
| Spec | GPT-5.1 | DeepSeek R1 |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Model type | Text | Text |
| Context window | 400K tokens | - |
| Input price | $1.25 / 1M tokens | - |
| Output price | $10 / 1M tokens | - |
| Status | Current | Current |
How GPT-5.1 and DeepSeek R1 differ
What the numbers mean in practice when choosing between GPT-5.1 and DeepSeek R1.
Strengths side by side
Where each model shines, according to benchmarks and provider positioning.
GPT-5.1
1. 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.
DeepSeek R1
1. Real-time reasoning and decision-making
- Built for scenarios that require instant output.
- Great for applications with fast-changing data.
2. Excellent for dynamic optimization
- Pricing adjustments, recommendations, routing, and system tuning.
3. Strong performance in finance and e-commerce
- Tracks market shifts.
- Updates predictions on the fly.
- Optimizes recommendations in real time.
4. High-speed pattern recognition
- Quickly interprets signals from streaming data.
- Useful in trading bots, alerts, and monitoring systems.
Use GPT-5.1 or DeepSeek R1 - or both
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by GPT-5.1 or DeepSeek R1 - 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 GPT-5.1 or DeepSeek R1. No code, no API keys, no deployment.
Switch models without rebuilding
Start on GPT-5.1, test the same tool on DeepSeek R1, 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 GPT-5.1 or DeepSeek R1 - connected to the tools you already use.
Related comparisons
See how GPT-5.1 and DeepSeek R1 stack up against other models in the directory.
FAQs
Pricing models differ: see the full GPT-5.1 and DeepSeek R1 pages in the Appaca AI models directory for current pricing details.
Context window data is listed on each model's page in the Appaca AI models directory.
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 GPT-5.1, test the same tool on DeepSeek R1, 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 GPT-5.1, DeepSeek R1, 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 GPT-5.1 or DeepSeek R1
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.