Gemini 3.1 Pro Preview vs GPT-5.6 Sol

Gemini 3.1 Pro Preview is ~40% cheaper than GPT-5.6 Sol on output tokens. Both are capability tier 7. GPT-5.6 Sol has the larger context window.

Gemini 3.1 Pro PreviewGPT-5.6 Sol
VendorGoogleOpenAI
Capability tier7/87/8
Size classFLAGSHIPFLAGSHIP
Parameters——
Context window1,048,5761,050,000 ✓
Input $/M$2$4
Output $/M$12 ✓$20
Cached input $/M$0.20$0.40

Which should you choose?

Both sit at capability tier 7, so Gemini 3.1 Pro Preview is usually the better value at ~40% lower output cost; prefer GPT-5.6 Sol only if you need its larger 1,050,000-token context. Because they're the same tier, benchmark both on your own prompts before committing — list price rarely predicts task quality.

At 10M input + 10M output tokens / month
Gemini 3.1 Pro Preview: $140.00GPT-5.6 Sol: $240.00Δ $100.00/mo

FAQ

Is Gemini 3.1 Pro Preview cheaper than GPT-5.6 Sol?

Gemini 3.1 Pro Preview is the cheaper of the two on output tokens ($12/M vs $20/M), about 40% less.

Gemini 3.1 Pro Preview vs GPT-5.6 Sol: which has a bigger context window?

GPT-5.6 Sol has the larger context window (1,050,000 tokens).

Which is more capable, Gemini 3.1 Pro Preview or GPT-5.6 Sol?

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-5.6 Sol: which should I use?

Both sit at capability tier 7, so Gemini 3.1 Pro Preview is usually the better value at ~40% lower output cost; prefer GPT-5.6 Sol only if you need its larger 1,050,000-token context. 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-5.6 Sol?

At 10M input + 10M output tokens per month, Gemini 3.1 Pro Preview runs about $140.00 and GPT-5.6 Sol about $240.00 — a difference of $100.00 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-5.6 Sol 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.