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 3.8 FlashGoogleReleased September 2, 2026
Gemini 3.8 Flash
The latest evolution in the Gemini 3 family, delivering state-of-the-art software engineering (73.7% DeepSWE) and agentic enterprise knowledge workflows.
multimodal-realtimeProprietary API$0.75 / 1M tok ($1.50 reg)Context: 1.049M (1,048,576 tokens)Arena ELO: 1475
Technical Specifications
Architecture Type
Agentic Knowledge & Software Engineering Transformer
Total Parameters
Undisclosed
Context Window
1.049M (1,048,576 tokens)
Max Output Tokens
65.536K (65,536 tokens)
Knowledge Cutoff
July 2026
Supported Modalities
text, code, vision, audio, video
License & Access
Google Cloud API Terms of Service
Benchmark Evaluations
Deepswe v1.1
73.7
Gdp Pdf Expert
35
Gdpval Aa v2 ELO
1545
Terminal Bench 2 1
89.4
Harveys Legal Agent
10
Vals Finance Agent v2
61.4
Chatbot Arena ELO
1475
Deep Architectural Overview
Gemini 3.8 Flash delivers substantial performance advancements across software engineering and agentic knowledge workflows, outperforming Claude Sonnet 5 and GPT-5.6 on DeepSWE v1.1 and agentic terminal coding.
Strengths & Considerations
Core Strengths
- 73.7% on DeepSWE v1.1 long-horizon software engineering
- 89.4% on Terminal-bench 2.1 agentic coding
- Customizable effort levels balancing quality, latency, and cost
Known Limitations
- Complex legal all-pass rates remain challenging across industry
Token & API Pricing
Input Tokens (1M)$0.75
Output Tokens (1M)$3.75
Cached Input (1M)$0.1875
Pricing is verified directly against Google's developer documentation and API rate sheets.
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