Gemini 3 Pro Preview

Nov 2025
Retired 2026-03-09Replace withGemini 3.1 Pro PreviewNewer versionGemini 4 ArgonCheaper, as goodClaude Haiku 5.5BetterMiMo v2.6 ProOpen weights
Gemini 3 Pro Preview
Compare in
on
—per task?
$2 / $12per 1M in / out?
—output speed?
1Mcontext

Rankingat high effort?

Retired models are left out of the current rankings.

Alternatives?

ModelScoreCostPer taskWhat changes
CheaperClaude Sonnet 5.5max×2-11%$5.46No forced tool use+5BetterGPT-6 Lunahigh+18%-96%$0.029Function calling only with none · Chat Completions+3OpenMiMo v2.6 Prothinking+66%-88%$0.13Pass back reasoning_content+3CheaperGemini 4 Argonhigh+88%-11%*$1.99Synchronous output stops at 65,536+2CheaperGPT-6.1 Solmax+85%-11%$0.72Remove unsupported parameters+5

History

6 versions
15202530Jul 25Oct 25Jan 26Release dateAA Intelligence Index 4.3.22.5 · May33.1
15202530Jul 25Oct 25Jan 26Release dateAA Intelligence Index 4.3.22.5 · May33.1

Benchmarks

all categories
Chat & Knowledge
Humanity's Last Exam39.7
AA Omniscience Index15.3
CritPt (physics)9.1
AA Intelligence Index 4.3.2≈28
AA Omniscience · Accuracy55.8
AA Omniscience · Hallucination Rate91.5
AA-LCR (long context) 1.176
MMLU-Pro · official boardlab90.1
GPQA Diamond90.8
AIME 2025 · AA archived95.7
Coding
Terminal-Bench Hard (version unstated)41.7
LiveCodeBench · AA archived91.7
Agents & Tool Use
τ³-bench · banking · 1.0.118
τ²-bench · AA87.1
τ²-bench · airline · 1.0.180.5
τ²-bench · retail · 1.0.175.9
τ²-bench · telecom · 1.0.191
τ²-bench · overall · 1.0.182.5
Writing & Language
IFBench (instructions)70.4
Vision & Documents
MMMU-Pro (vision)80.2

Watch out 1

Cannot use both thinking controls›

Setting thinking_level and legacy thinking_budget together returns HTTP 400; use only one. Source ↗

FAQ

How much does Gemini 3 Pro Preview cost?›

$2 per 1M input tokens and $12 per 1M output tokens (cheapest host: 302.AI).

Is Gemini 3 Pro Preview free to use?›

There is no free API; the cheapest paid price is $2 per 1M input tokens.

How can I use Gemini 3 Pro Preview?›

Through the Google API.

What is the context window of Gemini 3 Pro Preview?›

1M tokens.

When was Gemini 3 Pro Preview released? Is there a newer version?›

Released 2025-11-18. It has been superseded by Gemini 3.1 Pro Preview.

Is Gemini 3 Pro Preview open source?›

No, Gemini 3 Pro Preview is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can Gemini 3 Pro Preview read images?›

It accepts text and images, PDF files, audio, video as input.

What is Gemini 3 Pro Preview?›

Gemini 3 Pro Preview is a closed language model from Google, released Nov 2025.

What are the best alternatives to Gemini 3 Pro Preview?›

Claude Sonnet 5.5 (cheaper), GPT-6 Luna (better), MiMo v2.6 Pro (open weights).