Gemini 3.8 Flash
Gemini 3.8 Flash by Google is built for long-horizon software engineering, autonomous agents, and complex enterprise workflows, and is generally available.
Model Overview
Capabilities, design details, and architectural traits
Gemini 3.8 Flash - Google's model for long-horizon work
Gemini 3.8 Flash is engineered for long-horizon software engineering, autonomous agents, and complex enterprise workflows. It is generally available and ready for production use.
| Trait | Detail |
|---|---|
| Built for | Long-horizon software engineering, autonomous agents, and complex enterprise workflows |
| Reasoning control | Tunable thinking levels: low, medium, high, with medium as the default |
| Context | 1M token context window and 64k max output tokens |
| Training edge | Coding and reasoning gains driven in part by rigorous training in the demanding domain of cybersecurity |
Tunable thinking levels
A defining feature of 3.8 Flash is its reasoning control. Developers can set the thinking level to low, medium, or high, trading depth against latency per task. The default is medium.
A cybersecurity-trained sibling
3.8 Flash shares its foundational intelligence with Gemini 3.8 Flash Cyber, a variant focused on vulnerability detection and automated patching. Both variants are accelerated by long-running agentic loops that recursively evaluate and refine the underlying models, and the cybersecurity training behind this shared core is a documented driver of 3.8 Flash's coding and reasoning gains.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
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| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | Anthropic | Anthropic | |
| Release Date | September 2, 2026 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | - | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 1.0M Best Context Window | 1M | 1M |
| Pricing (per 1M tokens) | |||
| Input Pricing | $0.75 Best Input Pricing | $4 | $2 |
| Output Pricing | $3.75 Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | textimagefileaudiovideo | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 40.9 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | 76.3 | - | - |
| Agentic Index | 40.2 | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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