Gemini 3.1 Pro vs GPT-5.5: pricing, Quality, Value, and benchmarks

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Pricing, app access, and Conversation Value

• Humanity's Last Exam

  Normalized quality input

  44.4%

  Google DeepMind Gemini 3.1 Pro model card | Vendor-reported Google model-card HLE no-tools score. Do not use Scale AI Thinking High for the primary no-tools leaderboard.

• SWE-Bench Pro

  Software engineering task resolution

  54.2%

  Google DeepMind Gemini 3.1 Pro model card | Vendor-reported Google model-card SWE-Bench Pro (Public) score. Do not substitute SWE-Bench Verified.

• GPQA Diamond

  Normalized quality input

  94.3%

  Google DeepMind Gemini 3.1 Pro comparison table | Vendor-published cross-model comparison table. Treat this as current official evidence, not neutral third-party benchmarking.

• MathArena

  Expected Performance

  64.8%

  MathArena models leaderboard | MathArena is shown as supplementary evidence only and is not currently included in the PickAI Quality Score.

• Humanity's Last Exam

  Normalized quality input

  41.4%

  OpenAI GPT-5.5 announcement | Vendor-reported OpenAI GPT-5.5 HLE no-tools score. Do not use tools-enabled HLE for the primary reasoning leaderboard.

• SWE-Bench Pro

  Software engineering task resolution

  58.6%

  OpenAI GPT-5.5 announcement | OpenAI official launch and system-card materials. Results are vendor-reported and may use model-specific harness settings that must be compared cautiously.

• GPQA Diamond

  Normalized quality input

  93.6%

  OpenAI GPT-5.5 announcement | OpenAI official launch and system-card materials. Results are vendor-reported and may use model-specific harness settings that must be compared cautiously.

• ARC-AGI-2

  Novel pattern reasoning

  85.0%

  OpenAI GPT-5.5 announcement | ARC-AGI-2 is shown as supplementary evidence only and is not currently included in the PickAI Quality Score.

Choose this when you need the highest reasoning ceiling available and can feed it text, images, audio, or video in the same request.

Gemini 3.1 Pro is the ultimate all-in-one creative partner. It does more than chat; it builds. From generating cinematic video and studio-quality music to managing your life through seamless Google Workspace integration, it turns complex tasks into instant results. It is the fastest, most versatile tool for turning ideas into reality without needing a technical degree. True multimodality means it can create stunning video, professional images, and high-fidelity music in seconds. Its massive context window lets it remember entire books or long documents, so you do not have to repeat yourself. It works inside Gmail, Docs, and Drive to automate daily chores. It also delivers high-level reasoning and instant answers without the lag of older models. If you want an AI that acts as a creative studio, personal assistant, and expert researcher all in one subscription, Gemini 3.1 Pro is the gold standard.

This model is still under editorial review. We will publish a verdict as soon as we have completed our review of the AI model.

OpenAI’s GPT-5.5 is the best all-round AI subscription for buyers who want one powerful assistant that can do far more than answer questions. It combines polished writing, sharp research, coding help, data analysis, document creation, tool use, and superb built-in image generation inside one familiar workspace. Its biggest upgrade over GPT-5.4 is follow-through: it is better at taking messy, multi-step requests and turning them into finished work with less hand-holding. For non-technical users who want the most complete, capable, and easy-to-live-with AI experience, GPT-5.5 is the safest premium choice. GPT-5.5 sits inside the best complete AI workspace: writing, research, coding help, data analysis, documents, spreadsheets, tool use, and now very strong built-in image generation. OpenAI’s own release notes describe GPT-5.5 as built to understand complex goals, use tools, check its work, and carry multi-step tasks through to completion. ChatGPT Images 2.0 also adds stronger image generation, better text rendering, multilingual support, flexible visual styles, and more advanced creative control.