Google
The latest voice foundation model from Google DeepMind, integrating extended chain-of-thought reasoning directly into live spoken dialogues.
262.144K ctx$0.0035 / min (Live Extended Thinking)
Introducing Gemini 3.1 ProGoogleReleased February 19, 2026
Gemini 3.1 Pro
Google’s most advanced model for complex coding, scientific discovery, and long-horizon multimodal reasoning with a 64K output token buffer.
text-to-textProprietary API$1.50 / 1M tok (64k output)Context: 1.049M (1,048,576 tokens)Arena ELO: 1435
Technical Specifications
Architecture Type
Frontier Multimodal Reasoning MoE
Total Parameters
Frontier Scale
Context Window
1.049M (1,048,576 tokens)
Max Output Tokens
65.536K (65,536 tokens)
Knowledge Cutoff
November 2025
Supported Modalities
text, code, vision, audio, video
License & Access
Google Cloud API Terms of Service
Benchmark Evaluations
Math500
94.7
Mmlu Pro
83.9
Humaneval
95.8
Swe Bench Verified
61.2
Chatbot Arena ELO
1435
Deep Architectural Overview
Gemini 3.1 Pro represents an architectural refinement on Gemini 3 Pro. It expands single-turn output capacity to 64k tokens, allowing complete multi-file codebases and comprehensive research syntheses to be generated without truncation.
Strengths & Considerations
Core Strengths
- Massive 64k token single-turn generation capacity
- Top-ranked SWE-bench score (61.2%)
- Exceptional document & technical diagram comprehension
Known Limitations
- Higher latency on long reasoning queries
Token & API Pricing
Input Tokens (1M)$1.50
Output Tokens (1M)$6.00
Cached Input (1M)$0.3750
Pricing is verified directly against Google's developer documentation and API rate sheets.
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