Head-to-head · Updated
Data verifiedGPT-5.4 (ChatGPT) and Gemini 3.1 Pro both sit in the premium tier but serve different strengths. GPT-5.4 wins on coding and has unique desktop-control capabilities for agentic workflows. Gemini 3.1 Pro wins on research depth, context window (2M vs 272K tokens), and price ($2 vs $2.50/1M input). If you write more code than documents, go GPT. If you analyze more documents than you write code, go Gemini.
GPT-5.4
Best for agentic automation and desktop control workflows.
Gemini 3.1 Pro
Best for research and deep document analysis — 2M context at the best premium price.
| GPT-5.4 | Gemini 3.1 Pro | |
|---|---|---|
| Input cost / 1M tokens | $$0.20/1M | $$2.00/1M |
| Output cost / 1M tokens | $$15.00/1M | $$12.00/1M |
| Context window | 272k tokens | 2M tokens |
| Speed | Balanced | Balanced |
| Price tier | Premium | Premium |
| Benchmarks | ||
| SWE-bench (coding) | 74.9% | 63.2% |
| Arena Elo | 1,355 | 1,380 |
| MMLU | 91% | 90% |
Which model wins for each use case — and why.
GPT-5.4 scores higher on coding benchmarks and has unique computer-use API capabilities for agentic coding workflows. Gemini 3.1 Pro handles code but doesn't lead on benchmarks.
Gemini 3.1 Pro leads ARC-AGI-2 reasoning at 77.1% and has a 2M token context window for large document synthesis. GPT-5.4's 272K context limits research depth significantly.
Gemini 3.1 Pro's 2M context window is 7× larger than GPT-5.4's 272K. For processing large codebases, legal corpora, or research documents in one pass, Gemini wins clearly.
GPT-5.4 is the only frontier model that can control a desktop via API — clicking, typing, and navigating software. This makes it uniquely suited for agentic automation workflows.
Gemini 3.1 Pro costs $2/1M input vs GPT-5.4's $2.50/1M. Output is also cheaper at $12/1M vs $15/1M. At scale, Gemini is the more cost-efficient premium model.
Pick GPT-5.4 if…
Pick Gemini 3.1 Pro if…
Is ChatGPT or Gemini better in 2026?
GPT-5.4 is better for coding and agentic automation. Gemini 3.1 Pro is better for research, large documents, and cost-efficiency. Neither is objectively better — it depends on your use case.
Which is better for coding — ChatGPT or Gemini?
GPT-5.4 leads on coding benchmarks and uniquely supports desktop computer-use via API. For coding-first workflows, ChatGPT is the stronger pick.
Which is cheaper — ChatGPT or Gemini?
Gemini 3.1 Pro is cheaper: $2/1M input and $12/1M output vs GPT-5.4's $2.50/1M input and $15/1M output. Gemini is meaningfully cheaper at high volume.
Which AI has a bigger context window — ChatGPT or Gemini?
Gemini 3.1 Pro has a 2M token context window vs GPT-5.4's 272K — more than 7× larger. For large document analysis, Gemini is the only real option.
What does ChatGPT do that Gemini can't?
GPT-5.4 can control a desktop computer via API — it's the only frontier model with this capability. For agentic automation that needs to interact with software, nothing else competes.
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