Gemini 3.1 Pro Preview API Pricing
Google · released 2026-02-19
Also searched as: 3.1 Pro Preview pricing
Gemini 3.1 Pro Preview price
0.200¢ / 1K
1.20¢ / 1K
0.450¢ / 1K
Higher rates apply above a context threshold; see the official site
Official list price from Google, as recorded by models.dev
What it actually costs
| Workload | Tokens | Cost |
|---|---|---|
| Short chat reply | 500 in / 300 out | 0.46¢ |
| RAG query | 4,000 in / 500 out | $0.0140 |
| Long document summary | 50,000 in / 1,000 out | $0.1120 |
| Code review of a 2k-line file | 30,000 in / 2,000 out | $0.0840 |
| 1,000 chat replies/day for 30 days | 30,000 × (500 in / 300 out) | $138.00 |
Cost = (input tokens ÷ 1,000,000 × $2.00) + (output tokens ÷ 1,000,000 × $12.00).
Benchmarks
| Benchmark | Value | Source | As of |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | No public data yet | ||
| Epoch Mock AIME accuracy | 95.6% | epoch | 2026-02-19 |
| Epoch FrontierMath (T1–3) accuracy | 59.6% | epoch | 2026-02-19 |
| Arena text rating | 1487 | arena | 2026-10-28 |
| Arena coding rating (human preference votes, not task accuracy) | 1521 | arena | 2026-10-28 |
| Arena math rating | 1488 | arena | 2026-10-28 |
| Arena WebDev rating | 1447 | arena | 2026-10-28 |
LiveBench
Shown on this model page only — LiveBench data never appears in any leaderboard, comparison table or structured data on this site.
| LiveBench metric | Value | As of |
|---|---|---|
| LiveBench Global Average | 77.0 | 2026-06-25 |
| LiveBench Reasoning | 84.0 | 2026-06-25 |
| LiveBench Coding | 76.5 | 2026-06-25 |
| LiveBench Agentic Coding | 44.1 | 2026-06-25 |
| LiveBench Mathematics | 91.0 | 2026-06-25 |
| LiveBench Data Analysis | 78.5 | 2026-06-25 |
| LiveBench Language | 85.4 | 2026-06-25 |
| LiveBench Instruction Following | 79.1 | 2026-06-25 |
LiveBench leaderboard (livebench.ai, github.com/LiveBench/new-livebench), CC BY-SA 4.0 — livebench.ai · github.com/LiveBench/new-livebench · CC BY-SA 4.0
More from Google
| Model | Released | Blended $/1M |
|---|---|---|
| Gemini 4 Argon | 2026-10-13 | $4.00 |
| Nano Banana 2.1 | 2026-10-06 | $8.625 |
| Gemini 3.8 Flash TTS | 2026-09-22 | $2.625 |
| Gemini 3.8 Flash Lite TTS | 2026-09-22 | $1.875 |
| Gemini 3.8 Live Extended Thinking | 2026-09-15 | $1.6875 |
| Gemini 3.8 Live | 2026-09-15 | $1.6875 |
| Lyria 3.5 | 2026-09-03 | — |
| Gemini 3.8 Flash | 2026-09-02 | $1.50 |
Count tokens & estimate cost for Gemini 3.1 Pro Preview
Prices: Google's official list price as recorded by models.dev; benchmarks: see sources below; last synced 2026-11-06.
FAQ
Who develops Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview is developed by Google, released 2026-02-19.
How much does Gemini 3.1 Pro Preview cost per million tokens?
Gemini 3.1 Pro Preview costs $2.00 per 1M input tokens and $12.00 per 1M output tokens ($4.50 blended), per Google's official list price as recorded by models.dev.
What is the Gemini 3.1 Pro Preview API price?
The Gemini 3.1 Pro Preview API price is $2.00 per 1M input tokens and $12.00 per 1M output tokens ($4.50 per 1M blended).
How much does Gemini 3.1 Pro Preview cost for a typical request?
A short chat reply (500 in / 300 out tokens) costs about 0.46¢ on Gemini 3.1 Pro Preview, at $2.00/1M input and $12.00/1M output.
Is Gemini 3.1 Pro Preview free?
Gemini 3.1 Pro Preview's official API list price is $2.00 per 1M input tokens and $12.00 per 1M output tokens. This site tracks list prices only, not free tiers or trial credits — check Google's site for those.
Where does this data come from?
Pricing for Gemini 3.1 Pro Preview comes from models.dev and LiteLLM (open MIT-licensed catalogs); benchmark scores come from Epoch AI and LMArena (open CC BY 4.0 licenses); LiveBench scores (below) are CC BY-SA 4.0 — see /data-sources/. Last synced 2026-11-06.