Gemini 3.1 Pro Preview

google/gemini-3.1-pro-preview-20260219

Google's Gemini 3.1 Pro Preview, released on 2026-02-19, accepts audio, file, image, text, and video inputs and produces text output. It supports tools and reasoning, provides a context window of 1,048,576 tokens, and is priced at $2 per million input tokens and $12 per million output tokens. The model is not open weights.

  • tool use
  • structured outputs
  • reasoning

At a glance

providergoogle
releasedFeb 19, 2026
context1.0M
input / M$2

Specifications

What the API gives you

Context window
1.0M tokens
Max output
66K tokens
Input price
$2 / 1M tokens
Output price
$12 / 1M tokens
Cache read
$0.20 / 1M tokens
Modalities
audio, file, image, text, video → text
Knowledge cutoff
—
Released
Feb 19, 2026

Recommendation coverage

Where this model appears

  1. #2Best LLM for Logic & Problem Solving
  2. #3Best LLM for Writing
  3. #4Best LLM for Math & Reasoning
  4. #4Best LLM for Creative Writing
  5. #4Best LLM for Business Writing
  6. #5Best LLM for Roleplay & Character
  7. #6Best LLM for Literary Translation
  8. #6Best LLM for Document Summarization
  9. #6Best LLM for Competition Math
  10. #7Best LLM for Document Parsing
  11. #7Best LLM for Vision & Documents
  12. #7Best LLM for Image Understanding
  13. #8Best LLM for Chat & Roleplay
  14. #8Best LLM for a General Assistant

Measured evidence

Public benchmark record

LMArena Agent
-0.72026-07-13
LMArena Agent
-0.22026-07-20
LMArena Text
1479 Elo2026-07-16
LMArena Text
1489 Elo2026-07-20
LMArena Vision
1296 Elo2026-07-12
LMArena WebDev
1444 Elo2026-07-16
LMArena WebDev
1444 Elo2026-07-20

LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.

Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.