GPT-5.6 Sol vs Gemini 3.1 Pro
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
Gemini 3.1 Pro is 60% cheaper on blended cost ($7.00 vs $17.50/Mtok)
|
Oby OpenAI
|
Gby Google
|
|
|---|---|---|
| Overview | ||
| Status | Current flagship | Current flagship |
| Released | Jul 9, 2026 | Nov 1, 2025 |
| Pricing per million tokens | ||
| Input | $5.00/Mtok | $2.00/Mtok |
| Output | $30.00/Mtok | $12.00/Mtok |
| Blended avg | $17.50/Mtok | $7.00/Mtok |
| Cached input | $0.500/Mtok | $0.200/Mtok |
| Specifications | ||
| Context window | 1M tokens | 2M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimage
|
textimageaudiovideo
|
| Providers | ||
| Available from |
OpenAI — $5.00/$30.00/Mtok
|
Google — $2.00/$12.00/Mtok
|
Cost at scale — 1M tokens (50/50 input/output)
| Volume | GPT-5.6 Sol | Gemini 3.1 Pro | Savings |
|---|---|---|---|
| 1M tokens | $17.5 | $7 | $10.5 (60%) |
| 10M tokens | $175 | $70 | $105 (60%) |
| 100M tokens | $1750 | $700 | $1050 (60%) |
| 1000M tokens | $17500 | $7000 | $10500 (60%) |
Try Gemini 3.1 Pro on Google
The cheaper option here — Gemini 3.1 Pro costs $7.00/Mtok blended on Google.
Summary
GPT-5.6 Sol by OpenAI costs $5.00/Mtok input and $30.00/Mtok output, with a 1M-token context window. It supports text, image input.
Gemini 3.1 Pro by Google costs $2.00/Mtok input and $12.00/Mtok output, with a 2M-token context window. It supports text, image, audio, video input.
On a blended cost basis, Gemini 3.1 Pro is 60% cheaper than GPT-5.6 Sol. It also has a larger context window.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.