name = "Gemini 3.1 Pro Preview"
description = "Reasoning-first Gemini preview for agentic coding and complex problem solving"
family = "gemini-pro"
release_date = "2026-02-19"
last_updated = "2026-02-19"
attachment = true
reasoning = true
temperature = true
tool_call = true
structured_output = true
knowledge = "2025-01"
open_weights = false

[limit]
context = 1_048_576
output = 65_536

[modalities]
input = ["text", "image", "video", "audio", "pdf"]
output = ["text"]

[[benchmarks]]
name = "SWE-Bench Pro"
score = 54.2
metric = "resolve rate"
source = "https://www.anthropic.com/news/claude-opus-4-8"
date = "2026-05-28"

[[benchmarks]]
name = "Terminal-Bench"
score = 70.3
metric = "success rate"
harness = "Terminus-2"
version = "2.1"
source = "https://www.anthropic.com/news/claude-opus-4-8"
date = "2026-05-28"

[[benchmarks]]
name = "SWE-Bench Pro"
score = 46.1
metric = "resolve rate"
dataset = "public"
source = "https://labs.scale.com/leaderboard/swe_bench_pro_public"

[[benchmarks]]
name = "SWE-Atlas Codebase QnA"
score = 13.5
metric = "score"
harness = "Mini-SWE-Agent"
source = "https://labs.scale.com/leaderboard/sweatlas-qna"

[[benchmarks]]
name = "SWE-Atlas Refactoring"
score = 33.81
metric = "score"
harness = "Gemini CLI"
source = "https://labs.scale.com/leaderboard/sweatlas-refactoring"

[[benchmarks]]
name = "SWE-Atlas Test Writing"
score = 29.84
metric = "score"
harness = "Mini-SWE-Agent"
source = "https://labs.scale.com/leaderboard/sweatlas-tw"

[[benchmarks]]
name = "Artificial Analysis Coding Agent Index"
score = 43
metric = "average pass@1"
harness = "Gemini CLI"
variant = "high"
source = "https://artificialanalysis.ai/agents/coding-agents"

[[benchmarks]]
name = "SWE-Atlas Codebase QnA"
score = 45.6
metric = "pass@1"
harness = "Gemini CLI"
variant = "high"
source = "https://artificialanalysis.ai/agents/coding-agents"

[[benchmarks]]
name = "SWE-Bench Pro"
score = 15.1
metric = "pass@1"
harness = "Gemini CLI"
variant = "high"
dataset = "hard-aa"
source = "https://artificialanalysis.ai/agents/coding-agents"

[[benchmarks]]
name = "Terminal-Bench"
score = 68.3
metric = "pass@1"
harness = "Gemini CLI"
variant = "high"
version = "2.1"
source = "https://artificialanalysis.ai/agents/coding-agents"

[[benchmarks]]
name = "GPQA Diamond"
score = 94.3
metric = "accuracy"
source = "https://openai.com/index/introducing-gpt-5-5/"
date = "2026-04-23"

[[benchmarks]]
name = "Humanity's Last Exam"
score = 44.4
metric = "accuracy"
dataset = "full set, text + MM"
source = "https://deepmind.google/models/gemini/flash/"
date = "2026-05-19"

[[benchmarks]]
name = "ARC-AGI-2"
score = 77.1
metric = "accuracy"
source = "https://deepmind.google/models/gemini/flash/"
date = "2026-05-19"

[[benchmarks]]
name = "MMMU Pro"
score = 80.5
metric = "accuracy"
variant = "no tools"
source = "https://deepmind.google/models/gemini/flash/"
date = "2026-05-19"

[[benchmarks]]
name = "MCP Atlas"
score = 78.2
metric = "success rate"
source = "https://deepmind.google/models/gemini/flash/"
date = "2026-05-19"

[[benchmarks]]
name = "OSWorld-Verified"
score = 76.2
metric = "success rate"
source = "https://deepmind.google/models/gemini/flash/"
date = "2026-05-19"

[[benchmarks]]
name = "CharXiv Reasoning"
score = 83.3
metric = "accuracy"
variant = "no tools"
source = "https://deepmind.google/models/gemini/flash/"
date = "2026-05-19"

[[benchmarks]]
name = "GDPval-AA"
score = 1314
metric = "Elo"
source = "https://deepmind.google/models/gemini/flash/"
date = "2026-05-19"