--- title: "GPT-5.4 vs Gemini 3.1 Pro" type: comparison id: "gpt-vs-gemini" description: "Head-to-head comparison of GPT-5.4 and Gemini 3.1 Pro — the two most widely used frontier AI models. Ecosystem, pricing, multimodal, and benchmark analysis." last_updated: "2026-04-10" tags: - "gpt" - "gemini" - "openai" - "google" - "comparison" --- # GPT-5.4 vs Gemini 3.1 Pro The two models with the largest user bases. GPT-5.4 powers ChatGPT and the Microsoft ecosystem. Gemini 3.1 Pro powers Google Search, Workspace, and the fastest-growing AI platform. Both have 1M token context windows. The pricing difference is dramatic. ## At a Glance | | GPT-5.4 | Gemini 3.1 Pro | |---|---|---| | **Provider** | OpenAI | Google | | **Release** | March 2026 | February 2026 | | **Context Window** | 1M tokens | 1M tokens | | **Input Pricing** | $5.00 / 1M tokens | $2.00 / 1M tokens | | **Output Pricing** | $15.00 / 1M tokens | $12.00 / 1M tokens | | **Reasoning** | 95/100 | 93/100 | | **Coding** | 92/100 | 91/100 | | **Math** | 95/100 | 92/100 | | **Writing** | 93/100 | 89/100 | | **Multilingual** | 90/100 | 93/100 | | **Speed** | 80/100 | 78/100 | | **AIME** | 94.6% | Not disclosed | | **SWE-bench** | 74.9% | Not disclosed | | **Modalities** | Text, Image, Audio | Text, Image, Video, Audio | | **Free Tier** | No (Go plan at $8/mo) | Yes (Google AI Studio) | ## Pricing GPT-5.4 costs $5/$15. Gemini 3.1 Pro costs $2/$12. On input, GPT is 2.5x more expensive. On output, the gap narrows to 1.25x. For input-heavy workloads (long document analysis, RAG pipelines), Gemini's pricing advantage is enormous. For output-heavy workloads (code generation, content creation), the difference is smaller but still favors Gemini. Gemini has a free tier through Google AI Studio. GPT has the Go plan at $8/month, which is a paid tier. For experimentation and low-volume use, Gemini wins by default. **Winner: Gemini 3.1 Pro.** ## Reasoning and Math GPT-5.4 leads on both reasoning (95 vs 93) and math (95 vs 92). The AIME score of 94.6% is one of the highest published benchmarks. For problems requiring the deepest analytical reasoning -- math competitions, formal logic, scientific analysis -- GPT has a clear edge. GPT-5.4 Thinking pushes further to 98/100 reasoning and 97/100 math for an additional cost ($10/$40 per million tokens). Gemini has no equivalent thinking mode for the 3.1 Pro model (Deep Think is a separate model in the Gemini 3 series). For everyday reasoning tasks -- summarization, analysis, Q&A -- the 2-3 point gap between GPT and Gemini is unlikely to matter. Both handle standard business and research queries well. **Winner: GPT-5.4.** ## Coding Close but GPT edges ahead: 92/100 versus 91/100 on coding benchmarks, with a 74.9% SWE-bench score. The gap is small enough that for most coding tasks, both models produce similar results. Neither is the coding leader -- that title belongs to Claude Opus 4.6 at 97/100 and 80.8% SWE-bench. GPT-5.4 has deeper coding tool integration through GitHub Copilot, which is the most widely used coding assistant. Gemini is available in Google Antigravity (free) and Cursor. **Winner: GPT-5.4**, by a slim margin. ## Writing GPT-5.4 scores 93/100 on writing versus Gemini's 89/100. A 4-point gap that is noticeable in practice. GPT produces more polished prose with better structure and fewer repetitive patterns. Gemini's writing is competent but can be inconsistent -- brilliant on one prompt, formulaic on the next. For professional content creation, GPT is the more reliable choice. For drafting, summarization, and functional writing, both are adequate. **Winner: GPT-5.4.** ## Multimodal This is where Gemini pulls away. It supports text, image, video, and audio natively -- all trained as first-class modalities. GPT-5.4 supports text, image, and audio, but not video. If your workflow involves video analysis, Gemini is the only option between these two. Even for image and audio tasks, Gemini's native multimodal training gives it an architectural advantage. Google's training data pipeline for visual and audio content is arguably the largest in the world. **Winner: Gemini 3.1 Pro.** ## Multilingual Gemini scores 93/100 versus GPT's 90/100. Google's global reach across Search, Translate, and other services gives Gemini a data advantage in non-English languages. For applications serving a global audience or processing multilingual content, Gemini is the better pick. **Winner: Gemini 3.1 Pro.** ## Speed Nearly identical. GPT at 80/100 versus Gemini at 78/100. In practice, both feel responsive and interactive. This is not a differentiating factor. **Winner: Tie.** ## Ecosystem Two massive ecosystems, different centers of gravity. **GPT-5.4:** ChatGPT (hundreds of millions of users), Microsoft 365 Copilot, Azure OpenAI, GitHub Copilot, Assistants API, plugin marketplace, and the largest third-party developer community in AI. If your organization is Microsoft-centric, GPT is the default. **Gemini 3.1 Pro:** Google Search AI, Google Workspace, Vertex AI, Google AI Studio (free), Antigravity IDE (free), Android integration, and the Chrome extension ecosystem. If your organization is Google-centric, Gemini is the default. The OpenAI developer community is larger today, but Google's distribution advantage (Search, Android, Chrome) gives Gemini unmatched consumer reach. **Winner: Depends entirely on your existing stack.** ## Consistency An underrated dimension. GPT-5.4 tends to produce more predictable, consistent outputs across prompt variations. Gemini can be more variable -- high highs and low lows depending on how you phrase the request. For production applications where predictability matters, this favors GPT. **Winner: GPT-5.4.** ## The Verdict **Pick GPT-5.4 if:** - Reasoning and math are your primary use cases. - You are in the Microsoft/Azure ecosystem. - Writing quality matters for your outputs. - You need consistent, predictable behavior in production. - You already use GitHub Copilot or ChatGPT Plus. **Pick Gemini 3.1 Pro if:** - Budget is a primary concern. Gemini delivers 90%+ of GPT's quality at 40-60% of the cost. - You need video processing or the broadest multimodal support. - Multilingual support is important. - You are in the Google Cloud ecosystem. - You want a free tier to get started. - You need the largest possible developer distribution (via Google products). **The honest answer:** Gemini 3.1 Pro is the better value. GPT-5.4 is the more polished product. For most users, the quality difference between a 95 and 93 on reasoning does not justify a 2.5x input price increase. Gemini should be the default for cost-conscious teams, with GPT reserved for workloads where the last few percentage points of reasoning, writing quality, or ecosystem integration genuinely matter. And for coding specifically, neither of these models is the best choice -- that is Claude Opus 4.6.