GPT-5.4 vs DeepSeek V3
Compare pricing, context windows, and strengths for GPT-5.4 by OpenAI and DeepSeek V3 by DeepSeek - and see how to put either to work in Appaca.
GPT-5.4
OpenAI's frontier model for complex professional work with best intelligence at scale for agentic, coding, and professional workflows.
View GPT-5.4DeepSeek V3
A data-analysis powerhouse built for large-scale pattern recognition, prediction, and working with massive datasets.
View DeepSeek V3GPT-5.4 vs DeepSeek V3 at a glance
Specs and pricing side by side, from the Appaca AI models directory.
| Spec | GPT-5.4 | DeepSeek V3 |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Model type | Text | Text |
| Context window | 1.05M tokens | - |
| Input price | $2.5 / 1M tokens | - |
| Output price | $15 / 1M tokens | - |
| Status | Current | Current |
How GPT-5.4 and DeepSeek V3 differ
What the numbers mean in practice when choosing between GPT-5.4 and DeepSeek V3.
Strengths side by side
Where each model shines, according to benchmarks and provider positioning.
GPT-5.4
1. Best Intelligence at Scale
- OpenAI positions GPT-5.4 as its frontier model for agentic, coding, and professional workflows.
- Built for complex professional work where stronger reasoning and higher answer quality matter.
2. Configurable Reasoning + Multimodal Input
- Supports configurable reasoning effort from none to xhigh, letting teams balance speed and depth.
- Accepts both text and image inputs while producing text output.
3. Massive Context for Long-Running Work
- 1.05M token context window supports very large codebases, documents, and multi-step workflows.
- Allows up to 128 k output tokens for long-form answers and larger generations.
4. Updated Knowledge & Broad Tool Support
- Knowledge cut-off of Aug 31 2025 keeps it current for newer frameworks and business context.
- Supports tools like web search, file search, code interpreter, hosted shell, computer use, and MCP in the Responses API.
DeepSeek V3
1. Exceptional at large-scale data analysis
- Designed to handle massive datasets.
- Identifies trends, correlations, and anomalies.
2. High performance in predictive analytics
- Useful for forecasting, modeling, and probabilistic predictions.
- Popular in finance, medical research, and market trend analysis.
3. Optimized for structured, data-heavy workloads
- Stronger at analytical and statistical tasks than general text generation.
4. Enterprise-oriented capabilities
- Built for businesses needing deep insights from continuous data streams.
Use GPT-5.4 or DeepSeek V3 - or both
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by GPT-5.4 or DeepSeek V3 - 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-5.4 or DeepSeek V3. No code, no API keys, no deployment.
Switch models without rebuilding
Start on GPT-5.4, test the same tool on DeepSeek V3, 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-5.4 or DeepSeek V3 - connected to the tools you already use.
Related comparisons
See how GPT-5.4 and DeepSeek V3 stack up against other models in the directory.
FAQs
Pricing models differ: see the full GPT-5.4 and DeepSeek V3 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-5.4, test the same tool on DeepSeek V3, 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-5.4, DeepSeek V3, 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-5.4 or DeepSeek V3
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.