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Build with GPT-5.5 freeGPT-5.5 vs Gemini 3.1 Pro for Data Analysis
Which AI model is better for data analysis? We compare GPT-5.5 and Gemini 3.1 Pro on the criteria that matter most - with a clear verdict.
Why your data analysis LLM choice matters
Data analysis LLMs must reason correctly about numbers, generate accurate and executable code, and translate raw data into clear, actionable narrative. Unlike writing errors that are easy to spot, quantitative mistakes can go undetected - making model reliability and confidence calibration especially critical for data workflows.
Key evaluation criteria for data analysis
Side-by-Side Comparison
| Feature | GPT-5.5Winner | Gemini 3.1 Pro |
|---|---|---|
| Provider | OpenAI | |
| Model Type | text | text |
| Context Window | 1,000,000 tokens | 1,048,576 tokens |
| Input Cost | $5.00/ 1M tokens | $4.00/ 1M tokens |
| Output Cost | $30.00/ 1M tokens | $18.00/ 1M tokens |
| Top pick for Data Analysis |
Strengths for Data Analysis
GPT-5.5
OpenAI1. Strongest Agentic Coding Model
- State-of-the-art on Terminal-Bench 2.0 (82.7%), Expert-SWE (73.1%), and SWE-Bench Pro (58.6%), outperforming GPT-5.4 on complex coding tasks.
- Holds context across large systems, reasons through ambiguous failures, and carries changes through surrounding codebases with fewer tokens.
2. Higher Intelligence at GPT-5.4 Latency
- Co-designed, trained, and served on NVIDIA GB200/GB300 NVL72 systems to match GPT-5.4 per-token latency while performing at a significantly higher level.
- Uses fewer tokens to complete the same tasks, making it more efficient as well as more capable.
3. Powerful for Knowledge Work & Computer Use
- Scores 84.9% on GDPval (44 occupations) and 78.7% on OSWorld-Verified for autonomous computer operation.
- Excels at generating documents, spreadsheets, and reports; naturally moves across finding information, using tools, and checking output.
4. Scientific Research Co-Scientist
- Leading performance on GeneBench, BixBench, and FrontierMath; helped discover a new proof about Ramsey numbers verified in Lean.
- Strong enough to meaningfully accelerate progress at the frontiers of biomedical and mathematical research.
Gemini 3.1 Pro
Google1. Google's most advanced reasoning Gemini model
- Designed to solve complex problems across multimodal inputs, including text, audio, images, video, PDFs, and full code repositories.
- Google highlights improved software engineering behavior, better agentic performance, and stronger usability in domains like finance and spreadsheets.
2. Large multimodal context with substantial output room
- Supports a 1,048,576 token input context window for large repositories, long documents, and multi-source workflows.
- Allows up to 65,536 output tokens for longer answers, plans, and code generations.
3. More efficient thinking with expanded controls
- Improves token efficiency and reasoning performance across use cases.
- Adds the
MEDIUMthinking_leveloption to better balance cost, speed, and quality.
4. Strong support for production agents
- Supports grounding with Google Search, code execution, function calling, structured outputs, context caching, RAG, and chat completions.
- Also offers a custom-tools endpoint tuned for agentic workflows that mix bash-like tools with custom code tools.
Verdict: Best LLM for Data Analysis
For data analysis tasks, GPT-5.5 edges ahead based on its performance profile and design priorities. It scores higher on accuracy of quantitative reasoning and calculations - the criterion that matters most for data analysis workflows.
That said, Gemini 3.1 Pro remains a strong option. If clear, concise data-driven narrative generation is a higher priority than raw performance, or if your team is already using Google's tooling, Gemini 3.1 Pro can deliver strong results for data analysis workloads.
With Appaca, you can build data analysis apps powered by either model and switch between them at any time - no rebuild required. Test what actually performs best for your users before committing.
You know GPT-5.5 wins for data analysis. Now build with it.
Most teams spend days comparing models and hours copy-pasting prompts. With Appaca, you build a dedicated data analysis app - powered by GPT-5.5 - in minutes. No code, no re-prompting, runs on any device.
Free to start. Switch models any time. No rebuild required.
Build a data analysis app with GPT-5.5 - freeFrequently asked questions
Is GPT-5.5 or Gemini 3.1 Pro better for data analysis?
For data analysis tasks, GPT-5.5 has the edge based on its performance profile and design priorities. It ranks higher on accuracy of quantitative reasoning and calculations, which is the most important criterion for data analysis workflows. That said, both models can handle data analysis workloads - the best choice depends on your specific requirements and budget.
What are the key differences between GPT-5.5 and Gemini 3.1 Pro for data analysis?
The main differences are in accuracy of quantitative reasoning and calculations, quality of sql and python code generation, ability to interpret charts and structured data. GPT-5.5 is developed by OpenAI and comes from a different provider than Gemini 3.1 Pro. Context window, pricing, and speed all differ - check the comparison table above for a side-by-side breakdown.
How much does it cost to use GPT-5.5 vs Gemini 3.1 Pro?
Gemini 3.1 Pro is cheaper at $4.00/million input tokens, versus $5.00/million for GPT-5.5. For data analysis workloads, the total cost difference depends on your average prompt length and volume.
Can I build a data analysis app with GPT-5.5 or Gemini 3.1 Pro?
Yes. Both models can power data analysis applications. With Appaca, you can build a data analysis app using either GPT-5.5 or Gemini 3.1 Pro - and switch between them at any time to find the model that performs best for your specific workflow, without rebuilding your product.
Which model should I choose if I care most about accuracy of quantitative reasoning and calculations?
GPT-5.5 is the stronger choice when accuracy of quantitative reasoning and calculations is your top priority. It ranks #1 overall for data analysis tasks. If cost or latency are constraints, Gemini 3.1 Pro may still meet your needs at a lower cost.