Google

Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview is listed by Google at $2 input and $12 output per million tokens. The recorded context window is 1,048,576 tokens. Release date on file: 2026-02-19. LMArena's text board published 2026-10-20 gives it an overall rating of 1480.1 (rank 19, 129,523 votes). Price source: models.dev (MIT).

  • Context100
  • Inverse price98
  • Arena87
  • GPQA97
  • Tools100
  • Modalities100

List price

Input / 1M$2.00Output / 1M$12.00Cache read / 1M$0.20Blended$9.500Value index134.9Last move—

models.dev · MIT · retrieved Oct 24, 2026

Price history

Input and output list price. A missing day stays a gap in the line. The series is not a quality history.

$12.00 / 1M2026-06-252026-10-18
Input Output33 observationsModelPriceWatch LLM Token Price History · CC-BY-4.0

Benchmarks

LMArena is CC-BY-4.0. Epoch scores, including LiveBench where Epoch publishes it, are CC-BY-4.0. A blank cell means this snapshot has no match. Nothing here is estimated.

BenchmarkScoreDetailSource
LMArena overall1480.1rank 19 · 129,523 votesLMArena leaderboard dataset · CC-BY-4.0
LMArena coding1483.6rank 48 · 35,474 votesLMArena leaderboard dataset · CC-BY-4.0
LMArena math1485.9rank 29 · 6,734 votesLMArena leaderboard dataset · CC-BY-4.0
GPQA Diamond94.1%—Epoch AI Capabilities & benchmarking · CC-BY-4.0
LiveBench———
SWE-bench Verified———
Epoch Capability Index155.34153.32–158.13Epoch AI Capabilities & benchmarking · CC-BY-4.0

Provider prices

The list row is the price used for the value index. Other rows are the same model id on models.dev, plus the LiteLLM catalog price when we have one. A split quote is kept beside the list price.

QuoteProviderInput / 1MOutput / 1MBlendedSource
ListGoogle$2.00$12.00$9.500models.dev · MIT
Also listedStandard Compute$2.00$12.00$9.500models.dev · MIT
Also listedDaoXE$2.00$12.00$9.500models.dev · MIT
Also listedMerge Gateway$2.00$12.00$9.500models.dev · MIT
LiteLLMperplexity$2.00$12.00$9.500LiteLLM model_prices_and_context_window.json · MIT

Spec

Context1,048,576Max output65,536Inputtext, image, video, audio, pdfOutputtextReleased2026-02-19Open weightsNo

Spec fields are from the models.dev row for Google.

Also from Google