Gemini 3.1 Pro vs Grok 4.20 Beta: pricing, Quality, Value, and benchmarks

Buyer access

Pricing, app access, and ease of use

• Humanity's Last Exam

  Normalized quality input

  46.44%

  Scale Labs Humanity's Last Exam leaderboard | Scale-confirmed HLE row.

• SWE-bench Verified

  Normalized quality input

  80.6%

  Google DeepMind Gemini 3.1 Pro comparison table | Vendor-published cross-model comparison table. Treat this as current official evidence, not neutral third-party benchmarking.

• GPQA Diamond

  Normalized quality input

  94.3%

  Google DeepMind Gemini 3.1 Pro comparison table | Vendor-published cross-model comparison table. Treat this as current official evidence, not neutral third-party benchmarking.

• LiveCodeBench

  Fresh coding problems

  71.0%

  BenchLM Gemini 3.1 Pro model page | Third-party benchmark model page with sourced rows and transparent methodology. Treat this as accepted tier-3 benchmark evidence.

• Humanity's Last Exam

  Normalized quality input

  11.10%

  Artificial Analysis Humanity's Last Exam evaluations | Site label Grok 4.20 Beta maps to the current Artificial Analysis Grok 4.20 row.

• SWE-bench Verified

  Software engineering patch

  73.5%

  Artificial Analysis Grok 4.20 analysis page | Third-party benchmark comparison page with sourced tables and transparent methodology. Treat this as accepted tier-3 benchmark evidence.

• GPQA Diamond

  Normalized quality input

  78.5%

  Artificial Analysis Grok 4.20 analysis page | Third-party benchmark comparison page with sourced tables and transparent methodology. Treat this as accepted tier-3 benchmark evidence.

Choose this when you need the highest reasoning ceiling available and can feed it text, images, audio, or video in the same request.

Gemini 3.1 Pro is the ultimate all-in-one creative partner. It does more than chat; it builds. From generating cinematic video and studio-quality music to managing your life through seamless Google Workspace integration, it turns complex tasks into instant results. It is the fastest, most versatile tool for turning ideas into reality without needing a technical degree. True multimodality means it can create stunning video, professional images, and high-fidelity music in seconds. Its massive context window lets it remember entire books or long documents, so you do not have to repeat yourself. It works inside Gmail, Docs, and Drive to automate daily chores. It also delivers high-level reasoning and instant answers without the lag of older models. If you want an AI that acts as a creative studio, personal assistant, and expert researcher all in one subscription, Gemini 3.1 Pro is the gold standard.

Strong HLE, SWE-bench Verified, and GPQA evidence make Grok 4.20 Beta publishable now, but speed metrics are still unavailable in the current snapshot.

Grok 4.20 Beta is ready to enter the published roster on benchmark evidence, but buyer-facing speed guidance remains incomplete until OpenRouter performance metrics are captured.