Model Comparison

Jamba 1.5 Mini vs Qwen2.5 14B InstructWhich is better in 2026?

Qwen2.5 14B Instruct significantly outperforms across most benchmarks.

Verdict: Jamba 1.5 Mini vs Qwen2.5 14B Instruct — which is better?

Jamba 1.5 Mini (by AI21 Labs) and Qwen2.5 14B Instruct (by Alibaba Cloud / Qwen Team) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Jamba 1.5 Mini outperforms in 1 benchmarks (ARC-C), while Qwen2.5 14B Instruct is better at 5 benchmarks (GPQA, GSM8k, MMLU, MMLU-Pro, TruthfulQA). Qwen2.5 14B Instruct significantly outperforms across most benchmarks.

Choose Jamba 1.5 Mini if…

  • you want predictable pricing at $0.20/M input and $0.40/M output

Choose Qwen2.5 14B Instruct if…

  • you want the strongest raw capability — it leads on 5 of 6 shared benchmarks
  • you want the most recent training data — it shipped Sep 2024

Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

Jamba 1.5 Mini outperforms in 1 benchmarks (ARC-C), while Qwen2.5 14B Instruct is better at 5 benchmarks (GPQA, GSM8k, MMLU, MMLU-Pro, TruthfulQA).

Qwen2.5 14B Instruct significantly outperforms across most benchmarks.

Tue Jul 28 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

37.3B diff

Jamba 1.5 Mini has 37.3B more parameters than Qwen2.5 14B Instruct, making it 253.7% larger.

AI21 Labs
Jamba 1.5 Mini
52.0Bparameters
Alibaba Cloud / Qwen Team
Qwen2.5 14B Instruct
14.7Bparameters
52.0B
Jamba 1.5 Mini
14.7B
Qwen2.5 14B Instruct

Context Window

Maximum input and output token capacity

Only Jamba 1.5 Mini specifies input context (256,144 tokens). Only Jamba 1.5 Mini specifies output context (256,144 tokens).

AI21 Labs
Jamba 1.5 Mini
Input256,144 tokens
Output256,144 tokens
Alibaba Cloud / Qwen Team
Qwen2.5 14B Instruct
Input- tokens
Output- tokens
Tue Jul 28 2026 • llm-stats.com

License

Usage and distribution terms

Jamba 1.5 Mini is licensed under Jamba Open Model License, while Qwen2.5 14B Instruct uses Apache 2.0.

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

Jamba 1.5 Mini

Jamba Open Model License

Open weights

Qwen2.5 14B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

Jamba 1.5 Mini was released on 2024-08-22, while Qwen2.5 14B Instruct was released on 2024-09-19.

Qwen2.5 14B Instruct is 1 month newer than Jamba 1.5 Mini.

Jamba 1.5 Mini

Aug 22, 2024

1.9 years ago

Qwen2.5 14B Instruct

Sep 19, 2024

1.9 years ago

4w newer

Knowledge Cutoff

When training data ends

Jamba 1.5 Mini has a documented knowledge cutoff of 2024-03-05, while Qwen2.5 14B Instruct's cutoff date is not specified.

We can confirm Jamba 1.5 Mini's training data extends to 2024-03-05, but cannot make a direct comparison without Qwen2.5 14B Instruct's cutoff date.

Jamba 1.5 Mini

Mar 2024

Qwen2.5 14B Instruct

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Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

AI21 Labs
Larger context window (256,144 tokens)
Higher ARC-C score (85.7% vs 67.3%)
Alibaba Cloud / Qwen Team

Qwen2.5 14B Instruct

View details

Alibaba Cloud / Qwen Team

Higher GPQA score (45.5% vs 32.3%)
Higher GSM8k score (94.8% vs 75.8%)
Higher MMLU score (79.7% vs 69.7%)
Higher MMLU-Pro score (63.7% vs 42.5%)
Higher TruthfulQA score (58.4% vs 54.1%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Jamba 1.5 Mini and Qwen2.5 14B Instruct side-by-side, then vote on the output you prefer.

Jamba 1.5 Mini
✓ Preferred
Qwen2.5 14B Instruct
Open in Playground
AI Model Comparison Table
Feature
AI21 Labs
Jamba 1.5 Mini
Alibaba Cloud / Qwen Team
Qwen2.5 14B Instruct

FAQ

Common questions about Jamba 1.5 Mini vs Qwen2.5 14B Instruct.

Which is better, Jamba 1.5 Mini or Qwen2.5 14B Instruct?

Qwen2.5 14B Instruct significantly outperforms across most benchmarks. Jamba 1.5 Mini is made by AI21 Labs and Qwen2.5 14B Instruct is made by Alibaba Cloud / Qwen Team. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Jamba 1.5 Mini compare to Qwen2.5 14B Instruct in benchmarks?

Jamba 1.5 Mini scores ARC-C: 85.7%, GSM8k: 75.8%, MMLU: 69.7%, TruthfulQA: 54.1%, Arena Hard: 46.1%. Qwen2.5 14B Instruct scores GSM8k: 94.8%, HumanEval: 83.5%, MBPP: 82.0%, MATH: 80.0%, MMLU-Redux: 80.0%.

What are the context window sizes for Jamba 1.5 Mini and Qwen2.5 14B Instruct?

Jamba 1.5 Mini supports 256K tokens and Qwen2.5 14B Instruct supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Jamba 1.5 Mini and Qwen2.5 14B Instruct?

Key differences include licensing (Jamba Open Model License vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Jamba 1.5 Mini and Qwen2.5 14B Instruct?

Jamba 1.5 Mini is developed by AI21 Labs and Qwen2.5 14B Instruct is developed by Alibaba Cloud / Qwen Team.

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