The AI arena is free today

Open Superagent

Gemini 3.8 Flash Cyber vs Mercury 2

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 23.7.

Google · Inception · Updated for 2026

Which is better?

Gemini 3.8 Flash Cyber leads the overall LLM Stats Score 42.4 to 23.7, 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 42.4 and ranks #46 on LLM Stats
  • your work emphasizes coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Mercury 2

  • you want predictable pricing at $0.25/M input and $0.75/M output

At a glance

The differences that matter most.

Gemini 3.8 Flash Cyber
Google
Mercury 2
Inception
Core performance indexes
LLM Stats Score
42.4
#46
23.7
#164
Coding
35.6
#25
12.7
#136
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.25 / M
Output price
— / M
$0.75 / M
Context window
—
128,000

Individual benchmarks

4 reported for Gemini 3.8 Flash Cyber · 6 for Mercury 2

No common benchmarks found

Gemini 3.8 Flash Cyber and Mercury 2don'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 Mercury 2 specifies input context (128,000 tokens). Only Mercury 2 specifies output context (8,192 tokens).

Google
Gemini 3.8 Flash Cyber
Input- tokens
Output- tokens
Inception
Mercury 2
Input128,000 tokens
Output8,192 tokens
Fri Sep 04 2026 • llm-stats.com

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

Mercury 2

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.8 Flash Cyber was released on 2026-09-02, while Mercury 2 was released on 2026-02-24.

Gemini 3.8 Flash Cyber is 6 months newer than Mercury 2.

Gemini 3.8 Flash Cyber

Sep 2, 2026

2 days ago

6mo newer
Mercury 2

Feb 24, 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 Mercury 2 side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash Cyber
✓ Preferred
Mercury 2
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash Cyber vs Mercury 2.

Which is better, Gemini 3.8 Flash Cyber or Mercury 2?

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 23.7. Gemini 3.8 Flash Cyber is made by Google and Mercury 2 is made by Inception. 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 Mercury 2 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%. Mercury 2 scores AIME 2025: 91.1%, GPQA: 74.0%, IFBench: 71.0%, LiveCodeBench: 67.0%, Tau2 Airline: 53.0%.

What are the context window sizes for Gemini 3.8 Flash Cyber and Mercury 2?

Gemini 3.8 Flash Cyber supports an unknown number of tokens and Mercury 2 supports 128K 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 Mercury 2?

Key differences include LLM Stats Score (42.4 vs 23.7). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash Cyber and Mercury 2?

Gemini 3.8 Flash Cyber is developed by Google and Mercury 2 is developed by Inception.

Related comparisons