Model Comparison

Grok-3 Mini vs Jamba 1.5 MiniWhich is better in 2026?

Grok-3 Mini significantly outperforms across most benchmarks. Jamba 1.5 Mini is 1.4x cheaper per token.

Verdict: Grok-3 Mini vs Jamba 1.5 Mini — which is better?

Grok-3 Mini (by xAI) and Jamba 1.5 Mini (by AI21 Labs) 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.

Grok-3 Mini outperforms in 1 benchmarks (GPQA), while Jamba 1.5 Mini is better at 0 benchmarks. Grok-3 Mini significantly outperforms across most benchmarks.

On price, Jamba 1.5 Mini is roughly 1.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Jamba 1.5 Mini also accepts a larger context window (256,144 input tokens), making it the stronger choice for long documents and large codebases.

Choose Grok-3 Mini if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you want the most recent training data — it shipped Feb 2025

Choose Jamba 1.5 Mini if…

  • cost matters — it's about 1.4x cheaper per token
  • you process long inputs — it offers a 256,144 token context window
  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Grok-3 Mini outperforms in 1 benchmarks (GPQA), while Jamba 1.5 Mini is better at 0 benchmarks.

Grok-3 Mini significantly outperforms across most benchmarks.

Mon Jun 15 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Jamba 1.5 Mini costs less

For input processing, Grok-3 Mini ($0.30/1M tokens) is 1.5x more expensive than Jamba 1.5 Mini ($0.20/1M tokens).

For output processing, Grok-3 Mini ($0.50/1M tokens) is 1.3x more expensive than Jamba 1.5 Mini ($0.40/1M tokens).

In conclusion, Grok-3 Mini is more expensive than Jamba 1.5 Mini.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Jun 15 2026 • llm-stats.com
xAI
Grok-3 Mini
Input tokens$0.30
Output tokens$0.50
Best providerxAI
AI21 Labs
Jamba 1.5 Mini
Input tokens$0.20
Output tokens$0.40
Best providerAWS Bedrock
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Jamba 1.5 Mini accepts 256,144 input tokens compared to Grok-3 Mini's 128,000 tokens. Jamba 1.5 Mini can generate longer responses up to 256,144 tokens, while Grok-3 Mini is limited to 8,000 tokens.

xAI
Grok-3 Mini
Input128,000 tokens
Output8,000 tokens
AI21 Labs
Jamba 1.5 Mini
Input256,144 tokens
Output256,144 tokens
Mon Jun 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-3 Mini supports multimodal inputs, whereas Jamba 1.5 Mini does not.

Grok-3 Mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-3 Mini

Text
Images
Audio
Video

Jamba 1.5 Mini

Text
Images
Audio
Video

License

Usage and distribution terms

Grok-3 Mini is licensed under a proprietary license, while Jamba 1.5 Mini uses Jamba Open Model License.

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

Grok-3 Mini

Proprietary

Closed source

Jamba 1.5 Mini

Jamba Open Model License

Open weights

Release Timeline

When each model was launched

Grok-3 Mini was released on 2025-02-17, while Jamba 1.5 Mini was released on 2024-08-22.

Grok-3 Mini is 6 months newer than Jamba 1.5 Mini.

Grok-3 Mini

Feb 17, 2025

1.3 years ago

5mo newer
Jamba 1.5 Mini

Aug 22, 2024

1.8 years ago

Knowledge Cutoff

When training data ends

Grok-3 Mini has a knowledge cutoff of 2024-11-17, while Jamba 1.5 Mini has a cutoff of 2024-03-05.

Grok-3 Mini has more recent training data (up to 2024-11-17), making it potentially better informed about events through that date compared to Jamba 1.5 Mini (2024-03-05).

Grok-3 Mini

Nov 2024

8 mo newer
Jamba 1.5 Mini

Mar 2024

Provider Availability

Grok-3 Mini is available from xAI. Jamba 1.5 Mini is available from Bedrock, Google.

Grok-3 Mini

xai logo
xAI
Input Price:Input: $0.30/1MOutput Price:Output: $0.50/1M

Jamba 1.5 Mini

bedrock logo
AWS Bedrock
Input Price:Input: $0.20/1MOutput Price:Output: $0.40/1M
google logo
Google
Input Price:Input: $0.20/1MOutput Price:Output: $0.40/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

xAI
Supports multimodal inputs
Higher GPQA score (84.0% vs 32.3%)
AI21 Labs
Larger context window (256,144 tokens)
Less expensive input tokens
Less expensive output tokens
Has open weights
xAIGrok-3 Mini
AI21 LabsJamba 1.5 Mini
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Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-3 Mini
AI21 Labs
Jamba 1.5 Mini

FAQ

Common questions about Grok-3 Mini vs Jamba 1.5 Mini.

Which is better, Grok-3 Mini or Jamba 1.5 Mini?

Grok-3 Mini significantly outperforms across most benchmarks. Grok-3 Mini is made by xAI and Jamba 1.5 Mini is made by AI21 Labs. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Grok-3 Mini compare to Jamba 1.5 Mini in benchmarks?

Grok-3 Mini scores AIME 2024: 95.8%, AIME 2025: 90.8%, GPQA: 84.0%, LiveCodeBench: 80.4%. Jamba 1.5 Mini scores ARC-C: 85.7%, GSM8k: 75.8%, MMLU: 69.7%, TruthfulQA: 54.1%, Arena Hard: 46.1%.

Is Grok-3 Mini cheaper than Jamba 1.5 Mini?

Jamba 1.5 Mini is 1.5x cheaper for input tokens. Grok-3 Mini costs $0.30/M input and $0.50/M output via xai. Jamba 1.5 Mini costs $0.20/M input and $0.40/M output via bedrock.

What are the context window sizes for Grok-3 Mini and Jamba 1.5 Mini?

Grok-3 Mini supports 128K tokens and Jamba 1.5 Mini 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 Grok-3 Mini and Jamba 1.5 Mini?

Key differences include context window (128K vs 256K), input pricing ($0.30 vs $0.20/M), multimodal support (yes vs no), licensing (Proprietary vs Jamba Open Model License). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-3 Mini and Jamba 1.5 Mini?

Grok-3 Mini is developed by xAI and Jamba 1.5 Mini is developed by AI21 Labs.

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