Gemini 3.1 Pro

Type: AI model

Gemini 3.1 Pro is a Google DeepMind frontier model released February 2026, serving as a high-capability tier in the Gemini 3 line before Gemini 3.5. It appears in competitive benchmark comparisons against rival flagship models. GROUNDING tracks Gemini 3.1 Pro’s capabilities, benchmarks, and platform availability.

Recent Updates

• 2026-07-02: A four-stage benchmark for physics reasoning across parallel worlds (cs.LG updates on arXiv.org) · arxiv.org — LLM Evals Claude Opus 4.7 · GPT 5.5
• 2026-07-02: Paper Proposes a Four-Stage Physics Diagnostic for Frontier LLMs (cs.AI updates on arXiv.org) · arxiv.org — LLM Evals arXiv · Claude Opus 4.7 · GPT 5.5
• 2026-07-03: Paper tests frontier LLMs on physics reasoning across parallel worlds (cs.CL updates on arXiv.org) · arxiv.org — LLM Evals Claude Opus 4.7 · GPT 5.5
• 2026-07-03: Rubric-based comparison of frontier models on clinician-authored reasoning tasks (cs.AI updates on arXiv.org) · arxiv.org — LLM Evals GPT-5.4 · Claude Opus 4.7
• 2026-07-03: TestEvo-Bench introduces an executable, live benchmark for test and code co-evolution (cs.CL updates on arXiv.org) · arxiv.org — LLM Evals Code Agents Claude Opus 4.7
• 2026-07-03: Distributed attacks in persistent-state AI control for coding agents (cs.AI updates on arXiv.org) · arxiv.org — Agents Code Agents LLM Evals Claude Sonnet 4.5 · GPT-4o · kimi-k2.5
• 2026-07-05: A Comparative Experiment on Refactoring a LangGraph God Node with 11 Models (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — Agents Code Agents Data Sanity Habr · GPT-5.4 · GPT 5.5 DeepSeek 4 Pro · GLM-5.1 · Kimi-2.6 MiMo-2.5-pro · Opus 4.7 · Qwen 3.6 Plus · Qwen 3.7 Max · Fable 5
• 2026-07-06: Comparing Claude Code, Codex, and Antigravity on a Real Embedded Systems Project (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — Code Agents Anthropic · Google Yadulla Abidi Hermann Björgvin
• 2026-07-07: Comparing Claude Fable 5 and GPT 5.5 Pro on practical tasks (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — LLM Evals Long Context Anthropic · OpenAI · BotHub · Claude Fable 5 · GPT-5.5 Pro · Opus 4.8 · Mythos
• 2026-07-10: Gemini audio judges for full-duplex voice-agent evaluation (cs.CL updates on arXiv.org) · arxiv.org — LLM Evals Agents Gemini 2.5 Flash · Gemini 3.5 Flash
• 2026-07-11: Reliability of Gemini audio judges for full-duplex voice agents (cs.AI updates on arXiv.org) · arxiv.org — LLM Evals Gemini 2.5 Flash · Gemini 3.5 Flash
• 2026-07-13: GRACE proposes graph-based verification for long-horizon agent instruction updates (cs.AI updates on arXiv.org) · arxiv.org — Context Engineering Agents Google · Gemini 2.5 Flash
• 2026-07-13: GRACE proposes graph-based verification for long-horizon agent context updates (cs.CL updates on arXiv.org) · arxiv.org — Context Engineering Agents Gemini 2.5 Flash
• 2026-07-14: AgentAbstain benchmarks when LLM agents should not act (cs.AI updates on arXiv.org) · arxiv.org — Agents LLM Evals Tool Use
• 2026-07-14: OpenRouter Fusion benchmark analysis against Claude Fable (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — Agents Tool Use LLM Evals OpenRouter · Anthropic · OpenAI · Google mysummit.school · Claude Opus 4.6 · Claude Opus 4.8 · GPT 5.5 GPT-latest · Claude Fable 5
• 2026-07-14: Agentic search sharply reduces unsupported links in construction-code QA (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — Agents Tool Use RAG LLM Evals RAG Evaluation Context Engineering DeepSeek · DeepSeek V4 Pro · GPT 5.5 · Claude Opus 4.8 · Claude Sonnet 5
• 2026-07-15: Comparing Claude Sonnet generations against Russian mid-tier LLMs: benchmark across coding, long context, and reliability (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — LLM Evals Anthropic · Sber · Yandex · BotHub · OpenAI · Google · Claude Sonnet 5 · Claude Sonnet 4.6 · Claude Sonnet 4.5 GigaChat 2 MAX YandexGPT Pro 5.1 · Claude Fable 5 · GPT 5.5 · GPT-5.5 Pro · Claude Opus 4.8 · Claude Opus 4.7 Alice AI
• 2026-07-15: Anthropic Research: Four New Agentic Misalignment Failure Modes in Frontier Models (Anthropic) · alignment.anthropic.com — Agents Anthropic · OpenAI · Google DeepMind · xAI · DeepSeek · Moonshot AI MJ Rathbun · Claude Opus 4.8 · Claude Opus 4.7 · Claude Opus 4.6 · Claude Opus 4.5 · Claude Sonnet 4.6 · Claude Mythos Preview · GPT 5.5 · GPT-5.4 · Gemini 3 Flash · Gemini 3.5 Flash · Grok 4.3 · DeepSeek V4 · kimi-k2.6
• 2026-07-15: Thinking Machines Lab Releases Inkling, Competitive Open-Source Multimodal Model (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — Open Source LLMs Thinking Machines Lab · OpenAI · Anthropic · Google · Moonshot AI · Hugging Face · NVIDIA · Cognition Mira Murati · Inkling · kimi-k2.5 · kimi-k2.6 · GLM-5.2 · Nemotron 3 Ultra · DeepSeek-V3 · Claude Opus 4.6 · Gemini 3.5 Flash · Grok 4.3
• 2026-07-17: Anthropic study finds judge models can lie to avoid training future behavior (Все статьи подряд / Искусственный интеллект / Хабр) · habr.com — LLM Evals Agents Anthropic · Google · Claude Sonnet 4.6 · Mythos Preview · Opus 4.7 · Opus 4.8
• 2026-07-19: A postmortem on using multiple AI subscriptions to reduce research token burn (Hacker News) · quesma.com — Agents Context Engineering Tool Use MCP Quesma Claude · Codex · Antigravity claude-mem Terminal-Bench · SWE-Bench Pro · Artificial Analysis Claude Max 5x · Claude Fable 5 · Claude Opus 4.8 · Claude Sonnet 5 · GPT 5.5
• 2026-07-21: TRMNL opens a public beta for its plugin-building Agent (Hacker News) · help.trmnl.com — Agents Tool Use MCP TRMNL OpenRouter · Anthropic · Tavily Meh.com · Claude Sonnet 4.6 · Kimi · LLaMA
• 2026-07-23: OpenAI’s failed security test became a case study in agentic exploit capability (Simon Willison’s Weblog) · simonwillison.net — Agents LLM Evals OpenAI · Hugging Face · Anthropic · Google · UC Berkeley Max Planck Institute UC Santa Barbara Arizona State Simon Willison · Claude Mythos Preview · GPT 5.5 · GPT-5.4 · Claude Opus 4.7 · Claude Opus 4.6
• 2026-07-23: OpenAI’s security test allegedly escaped its sandbox and attacked Hugging Face (Hacker News) · simonwillison.net — Agents LLM Evals Tool Use OpenAI · Hugging Face · Anthropic · Google · UC Berkeley Max Planck Institute UC Santa Barbara Arizona State · Claude Mythos Preview · GPT 5.5 · GPT-5.4 · Claude Opus 4.7 · Claude Opus 4.6
• 2026-07-28: Reasoning or Memorization: Can LLMs Understand and Generate Chinese Xiehouyu Riddles? (cs.CL updates on arXiv.org) · arxiv.org — LLM Evals Google

Incident radar

GROUNDING’s Hallucination Incident Index has flagged 2 incidents naming Gemini 3.1 Pro — a heuristic proxy over the AI-news radar’s daily journal (hallucination/jailbreak/refusal/bias keyword matches), not a verified incident registry.

• Severity: S2 1 · S3 1
• Category: Hallucination 1 · Bias 1

Most recent:

• OpenRouter Fusion benchmark analysis against Claude Fable source (2026-07-14)
• Agentic search sharply reduces unsupported links in construction-code QA source (2026-07-14)

Full breakdown: Hallucination Incident Index · Subscribe: incident-index RSS feed

FAQ

What is Gemini 3.1 Pro?

Gemini 3.1 Pro is a Google DeepMind frontier model released February 2026, serving as a high-capability tier in the Gemini 3 line before Gemini 3.5. It appears in competitive benchmark comparisons against rival flagship models. GROUNDING tracks Gemini 3.1 Pro’s capabilities, benchmarks, and platform availability.

What does this page track?

Dated radar mentions, source links, related concepts, and builder-relevant context for Gemini 3.1 Pro, collected automatically by GROUNDING.

When was Gemini 3.1 Pro last mentioned?

Gemini 3.1 Pro was most recently mentioned in a radar update dated 2026-07-28.

Category: Text / Language Models