Gemini 3.1 Pro vs GPT-5.4 Pro: Specs & Benchmark Comparison
| Characteristic | Gemini 3.1 Pro | GPT-5.4 Pro |
|---|---|---|
| Company | OpenAI | |
| Release Date | February 19, 2026 | March 1, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 66K | 128K |
| Input Price / 1M | $2.50 | $15.00 |
| Output Price / 1M | $15.00 | $225.00 |
| Average Score | 0.8 | 0.0 |
Verdict
Gemini 3.1 Pro leads in 2 out of 3 comparison categories.
API Cost
Gemini 3.1 Pro is 13.7x cheaper: input $2.50/1M vs $15.00/1M tokens.
Context Window
Gemini 3.1 Pro supports a larger context: 1M vs 1M tokens.
Recency
Both models were released around the same time: 2/19/2026 and 3/1/2026.
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The Gemini 3.1 Pro and GPT-5.4 Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.1 Pro or GPT-5.4 Pro page. See also the complete list of AI model comparisons.