Gemini 3.1 Pro Preview vs GPT-5.5
Gemini 3.1 Pro Preview is ~60% cheaper than GPT-5.5 on output tokens. Both are capability tier 7. Gemini 3.1 Pro Preview has the larger context window.
| Gemini 3.1 Pro Preview | GPT-5.5 | |
|---|---|---|
| Vendor | OpenAI | |
| Capability tier | 7/8 | 7/8 |
| Size class | FLAGSHIP | FLAGSHIP |
| Parameters | — | — |
| Context window | 1,048,576 ✓ | 1,000,000 |
| Input $/M | $2 | $5 |
| Output $/M | $12 ✓ | $30 |
| Cached input $/M | $0.20 | $0.50 |
Which should you choose?
Both sit at capability tier 7, so Gemini 3.1 Pro Preview is usually the better value at ~60% lower output cost, and it also carries the larger 1,048,576-token context window. Because they're the same tier, benchmark both on your own prompts before committing — list price rarely predicts task quality.
FAQ
Is Gemini 3.1 Pro Preview cheaper than GPT-5.5?
Gemini 3.1 Pro Preview is the cheaper of the two on output tokens ($12/M vs $30/M), about 60% less.
Gemini 3.1 Pro Preview vs GPT-5.5: which has a bigger context window?
Gemini 3.1 Pro Preview has the larger context window (1,048,576 tokens).
Which is more capable, Gemini 3.1 Pro Preview or GPT-5.5?
Both sit at the same capability tier (7/8) — pick on price, context, or benchmark them on your prompts.
Gemini 3.1 Pro Preview or GPT-5.5: which should I use?
Both sit at capability tier 7, so Gemini 3.1 Pro Preview is usually the better value at ~60% lower output cost, and it also carries the larger 1,048,576-token context window. Because they're the same tier, benchmark both on your own prompts before committing — list price rarely predicts task quality.
How much more does Gemini 3.1 Pro Preview cost than GPT-5.5?
At 10M input + 10M output tokens per month, Gemini 3.1 Pro Preview runs about $140.00 and GPT-5.5 about $350.00 — a difference of $210.00 per month at that volume.
Settle it on your own prompts
List prices only go so far — benchmark Gemini 3.1 Pro Preview and GPT-5.5 on your actual workload for measured cost, latency and quality.
Pricing and specs maintained by Mintok's catalog watchers from public sources. Not investment advice. Methodology.