Gemini 3.8 Flash
Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
At a glance
- Input / 1M
- $0.75
- Output / 1M
- $3.75
- Context
- 1.05M
- Max output
- 66K
- Intelligence
- 40.9
- Released
- Sep 2026
Pricing
Gemini 3.8 Flash API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $0.75 |
|---|---|
| Output tokensPer 1M tokens | $3.75 |
| Cached input (read)Per 1M tokens | $0.08 |
| Cache writePer 1M tokens | $0.04 |
| Web searchPer request | $0.014 |
Chat message
2K in, 500 out
$3.38
per 1,000 requests
Coding task
30K in, 4K out
$37.50
per 1,000 requests
Long document summary
150K in, 2K out
$120
per 1,000 requests
Benchmarks
Gemini 3.8 Flash benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
40.9
Coding index
76.3
Agentic index
40.2
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 1.05M tokens
- Max output
- 66K tokens
- Input types
- Audio, File, Image, Text, Video
- Output types
- Text
- Reasoning effort
- High, Medium, Low
- Release date
- September 2, 2026
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
Gemini 3.8 Flash vs other models
See how Gemini 3.8 Flash stacks up head to head on price, benchmarks, and features.
VS
Gemini 3.8 Flash vs DeepSeek V4.1 Flash
Google vs DeepSeek
See comparisonVSGemini 3.8 Flash vs GLM 5.3 Flash
Google vs Z.ai
See comparisonVSGemini 3.8 Flash vs MiMo-V2.6-Flash
Google vs Xiaomi
See comparisonVSGemini 3.8 Flash vs Hy4 preview
Google vs Tencent
See comparisonVS
Gemini 3.8 Flash vs GPT-6 Luna
Google vs OpenAI
See comparisonVSGemini 3.8 Flash vs DeepSeek V4 Flash 0731
Google vs DeepSeek
See comparisonMore Gemini 3.8 Flash comparisons
- Gemini 3.8 Flash vs Claude Opus 5.5
- Gemini 3.8 Flash vs GLM 5.3
- Gemini 3.8 Flash vs DeepSeek V4 Flash 0423
- Gemini 3.8 Flash vs Step 5 Preview
- Gemini 3.8 Flash vs Hy3
- Gemini 3.8 Flash vs GPT-5.6 Luna
- Gemini 3.8 Flash vs GPT-6 Astra
- Gemini 3.8 Flash vs Kimi K3
- Gemini 3.8 Flash vs Muse Spark 1.3
- Gemini 3.8 Flash vs Grok 4.7
- Gemini 3.8 Flash vs DeepSeek V4 Pro 0813
- Gemini 3.8 Flash vs Qwen3.8 Max (0902)
- Gemini 3.8 Flash vs Grok 4.6
- Gemini 3.8 Flash vs Claude Haiku 5.5
- Gemini 3.8 Flash vs GPT-5.6 Terra
- Gemini 3.8 Flash vs Claude Sonnet 5
- Gemini 3.8 Flash vs Claude Opus 4.8
- Gemini 3.8 Flash vs Ling 3.1 Flash
- Gemini 3.8 Flash vs Claude Opus 4.7
- Gemini 3.8 Flash vs Qwen3.8 2.4T A95B
- Gemini 3.8 Flash vs Gemini 3.7 Flash
- Gemini 3.8 Flash vs Muse Spark 1.2
- Gemini 3.8 Flash vs GPT-5.4
- Gemini 3.8 Flash vs Grok 4.5
- Gemini 3.8 Flash vs GPT-5.5
- Gemini 3.8 Flash vs Gemini 3.6 Flash
- Gemini 3.8 Flash vs Muse Spark 1.1
- Gemini 3.8 Flash vs Gemini 3.5 Flash
Alternatives
Gemini 3.8 Flash alternatives
Similar models worth considering, and where each one has the edge.
Z.ai
GLM 5.3
Moonshot AI
Kimi K3
Z.ai
GLM 5.3 Flash
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does Gemini 3.8 Flash cost?
Gemini 3.8 Flash costs $0.75 per 1M input tokens and $3.75 per 1M output tokens through the API. A typical chat message costs about $3.38 per 1,000 messages.
What is the context window of Gemini 3.8 Flash?
Gemini 3.8 Flash accepts up to 1.05M tokens of input and can write up to 66K tokens in a single response.
What is the best alternative to Gemini 3.8 Flash?
GLM 5.3 from Z.ai is a strong alternative. It offers: higher intelligence score.
Can I use Gemini 3.8 Flash alongside other models?
Yes. Shortcut Chat sends one prompt to Gemini 3.8 Flash and any other models you pick at the same time, so you can compare answers side by side.
Try Gemini 3.8 Flash next to every other model.
Use Gemini 3.8 Flash alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.