The AI arena is free today

Open Superagent

Gemini 3.8 Flash Cyber vs Seed 1.8

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.3 to 34.2.

Google · ByteDance · Updated for 2026

Which is better?

Gemini 3.8 Flash Cyber leads the overall LLM Stats Score 42.3 to 34.2, ranking #46 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 3.8 Flash Cyber

  • overall performance matters — it scores 42.3 and ranks #46 on LLM Stats
  • your work emphasizes coding and agents — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Seed 1.8

  • you want predictable pricing at $0.25/M input and $2.00/M output

At a glance

The differences that matter most.

Core performance indexes
42.3
#46
34.2
#91
35.7
#25
19.8
#99
31.5
#28
14.9
#86
Cost, coverage & limits
Benchmark wins
Input price
— / M
$0.25 / M
Output price
— / M
$2.00 / M
Context window
256,000

Individual benchmarks

4 reported for Gemini 3.8 Flash Cyber · 57 for Seed 1.8

No common benchmarks found

Gemini 3.8 Flash Cyber and Seed 1.8don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Seed 1.8 specifies input context (256,000 tokens). Only Seed 1.8 specifies output context (256,000 tokens).

Google
Gemini 3.8 Flash Cyber
Input- tokens
Output- tokens
ByteDance
Seed 1.8
Input256,000 tokens
Output256,000 tokens
Wed Sep 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Seed 1.8 supports multimodal inputs, whereas Gemini 3.8 Flash Cyber does not.

Seed 1.8 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3.8 Flash Cyber

Text
Images
Audio
Video

Seed 1.8

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 3.8 Flash Cyber

Proprietary

Closed source

Seed 1.8

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.8 Flash Cyber was released on 2026-09-02, while Seed 1.8 was released on 2026-02-17.

Gemini 3.8 Flash Cyber is 7 months newer than Seed 1.8.

Gemini 3.8 Flash Cyber

Sep 2, 2026

6 days ago

6mo newer
Seed 1.8

Feb 17, 2026

6 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against Gemini 3.8 Flash Cyber and Seed 1.8 side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash Cyber
✓ Preferred
Seed 1.8
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash Cyber vs Seed 1.8.

Which is better, Gemini 3.8 Flash Cyber or Seed 1.8?

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.3 to 34.2. Gemini 3.8 Flash Cyber is made by Google and Seed 1.8 is made by ByteDance. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3.8 Flash Cyber compare to Seed 1.8 in benchmarks?

Gemini 3.8 Flash Cyber scores Gray Swan IPI Benchmark: 94.0%, CyberGym: 86.2%, Google Real-world Vulnerability Discovery: 71.0%, CWE-Bench: 47.2%. Seed 1.8 scores CountBench: 96.3%, AIME 2025: 94.3%, VLMsAreBlind: 93.0%, MMLU: 92.3%, AI2D: 89.1%.

What are the context window sizes for Gemini 3.8 Flash Cyber and Seed 1.8?

Gemini 3.8 Flash Cyber supports an unknown number of tokens and Seed 1.8 supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.8 Flash Cyber and Seed 1.8?

Key differences include LLM Stats Score (42.3 vs 34.2), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash Cyber and Seed 1.8?

Gemini 3.8 Flash Cyber is developed by Google and Seed 1.8 is developed by ByteDance.