The AI arena is free today

Open Superagent

Gemini 3.8 Flash Cyber vs Jamba 1.5 Large

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.5 to 1.2.

Google · AI21 Labs · Updated for 2026

Which is better?

Gemini 3.8 Flash Cyber leads the overall LLM Stats Score 42.5 to 1.2, ranking #45 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 42.5 and ranks #45 on LLM Stats
  • you want the most recent training data — it shipped Sep 2026

Choose Jamba 1.5 Large

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 3.8 Flash Cyber
Google
Jamba 1.5 Large
AI21 Labs
Core performance indexes
LLM Stats Score
42.5
#45
1.2
#309
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$2.00 / M
Output price
— / M
$8.00 / M
Context window
—
256,000

Individual benchmarks

4 reported for Gemini 3.8 Flash Cyber · 8 for Jamba 1.5 Large

No common benchmarks found

Gemini 3.8 Flash Cyber and Jamba 1.5 Largedon'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 Jamba 1.5 Large specifies input context (256,000 tokens). Only Jamba 1.5 Large specifies output context (256,000 tokens).

Google
Gemini 3.8 Flash Cyber
Input- tokens
Output- tokens
AI21 Labs
Jamba 1.5 Large
Input256,000 tokens
Output256,000 tokens
Thu Sep 03 2026 • llm-stats.com

License

Usage and distribution terms

Gemini 3.8 Flash Cyber is licensed under a proprietary license, while Jamba 1.5 Large uses Jamba Open Model License.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 3.8 Flash Cyber

Proprietary

Closed source

Jamba 1.5 Large

Jamba Open Model License

Open weights

Release Timeline

When each model was launched

Gemini 3.8 Flash Cyber was released on 2026-09-02, while Jamba 1.5 Large was released on 2024-08-22.

Gemini 3.8 Flash Cyber is 25 months newer than Jamba 1.5 Large.

Gemini 3.8 Flash Cyber

Sep 2, 2026

0 days ago

2.0yr newer
Jamba 1.5 Large

Aug 22, 2024

2.0 years ago

Knowledge Cutoff

When training data ends

Jamba 1.5 Large has a documented knowledge cutoff of 2024-03-05, while Gemini 3.8 Flash Cyber's cutoff date is not specified.

We can confirm Jamba 1.5 Large's training data extends to 2024-03-05, but cannot make a direct comparison without Gemini 3.8 Flash Cyber's cutoff date.

Gemini 3.8 Flash Cyber

—

Jamba 1.5 Large

Mar 2024

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 Jamba 1.5 Large side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash Cyber
✓ Preferred
Jamba 1.5 Large
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash Cyber vs Jamba 1.5 Large.

Which is better, Gemini 3.8 Flash Cyber or Jamba 1.5 Large?

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.5 to 1.2. Gemini 3.8 Flash Cyber is made by Google and Jamba 1.5 Large is made by AI21 Labs. 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 Jamba 1.5 Large 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%. Jamba 1.5 Large scores ARC-C: 93.0%, GSM8k: 87.0%, MMLU: 81.2%, Arena Hard: 65.4%, TruthfulQA: 58.3%.

What are the context window sizes for Gemini 3.8 Flash Cyber and Jamba 1.5 Large?

Gemini 3.8 Flash Cyber supports an unknown number of tokens and Jamba 1.5 Large 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 Jamba 1.5 Large?

Key differences include LLM Stats Score (42.5 vs 1.2), licensing (Proprietary vs Jamba Open Model License). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash Cyber and Jamba 1.5 Large?

Gemini 3.8 Flash Cyber is developed by Google and Jamba 1.5 Large is developed by AI21 Labs.

Related comparisons