Model Comparison

Jamba 1.5 Large vs Pixtral-12BWhich is better in 2026?

Jamba 1.5 Large significantly outperforms across most benchmarks. Pixtral-12B is 23.3x cheaper per token.

Verdict: Jamba 1.5 Large vs Pixtral-12B — which is better?

Jamba 1.5 Large (by AI21 Labs) and Pixtral-12B (by Mistral AI) 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 Large outperforms in 1 benchmarks (MMLU), while Pixtral-12B is better at 0 benchmarks. Jamba 1.5 Large significantly outperforms across most benchmarks.

On price, Pixtral-12B is roughly 23.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Jamba 1.5 Large also accepts a larger context window (256,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Jamba 1.5 Large if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 256,000 token context window

Choose Pixtral-12B if…

  • cost matters — it's about 23.3x cheaper per token
  • you want the most recent training data — it shipped Sep 2024

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Jamba 1.5 Large outperforms in 1 benchmarks (MMLU), while Pixtral-12B is better at 0 benchmarks.

Jamba 1.5 Large significantly outperforms across most benchmarks.

Tue Jul 28 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Pixtral-12B costs less

For input processing, Jamba 1.5 Large ($2.00/1M tokens) is 13.3x more expensive than Pixtral-12B ($0.15/1M tokens).

For output processing, Jamba 1.5 Large ($8.00/1M tokens) is 53.3x more expensive than Pixtral-12B ($0.15/1M tokens).

In conclusion, Jamba 1.5 Large is more expensive than Pixtral-12B.*

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

Lowest available price from all providers
Tue Jul 28 2026 • llm-stats.com
AI21 Labs
Jamba 1.5 Large
Input tokens$2.00
Output tokens$8.00
Best providerAWS Bedrock
Mistral AI
Pixtral-12B
Input tokens$0.15
Output tokens$0.15
Best providerMistral
Notice missing or incorrect data?Start an Issue

Model Size

Parameter count comparison

385.6B diff

Jamba 1.5 Large has 385.6B more parameters than Pixtral-12B, making it 3109.7% larger.

AI21 Labs
Jamba 1.5 Large
398.0Bparameters
Mistral AI
Pixtral-12B
12.4Bparameters
398.0B
Jamba 1.5 Large
12.4B
Pixtral-12B

Context Window

Maximum input and output token capacity

Jamba 1.5 Large accepts 256,000 input tokens compared to Pixtral-12B's 128,000 tokens. Jamba 1.5 Large can generate longer responses up to 256,000 tokens, while Pixtral-12B is limited to 8,192 tokens.

AI21 Labs
Jamba 1.5 Large
Input256,000 tokens
Output256,000 tokens
Mistral AI
Pixtral-12B
Input128,000 tokens
Output8,192 tokens
Tue Jul 28 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Pixtral-12B supports multimodal inputs, whereas Jamba 1.5 Large does not.

Pixtral-12B can handle both text and other forms of data like images, making it suitable for multimodal applications.

Jamba 1.5 Large

Text
Images
Audio
Video

Pixtral-12B

Text
Images
Audio
Video

License

Usage and distribution terms

Jamba 1.5 Large is licensed under Jamba Open Model License, while Pixtral-12B uses Apache 2.0.

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

Jamba 1.5 Large

Jamba Open Model License

Open weights

Pixtral-12B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Jamba 1.5 Large was released on 2024-08-22, while Pixtral-12B was released on 2024-09-17.

Pixtral-12B is 1 month newer than Jamba 1.5 Large.

Jamba 1.5 Large

Aug 22, 2024

1.9 years ago

Pixtral-12B

Sep 17, 2024

1.9 years ago

3w newer

Knowledge Cutoff

When training data ends

Jamba 1.5 Large has a documented knowledge cutoff of 2024-03-05, while Pixtral-12B'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 Pixtral-12B's cutoff date.

Jamba 1.5 Large

Mar 2024

Pixtral-12B

Provider Availability

Jamba 1.5 Large is available from Bedrock, Google. Pixtral-12B is available from Mistral AI.

Jamba 1.5 Large

bedrock logo
AWS Bedrock
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M
google logo
Google
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M

Pixtral-12B

mistral logo
Mistral
Input Price:Input: $0.15/1MOutput Price:Output: $0.15/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Key Takeaways

Larger context window (256,000 tokens)
Higher MMLU score (81.2% vs 69.2%)
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Jamba 1.5 Large and Pixtral-12B side-by-side, then vote on the output you prefer.

Jamba 1.5 Large
✓ Preferred
Pixtral-12B
Open in Playground
AI Model Comparison Table
Feature
AI21 Labs
Jamba 1.5 Large
Mistral AI
Pixtral-12B

FAQ

Common questions about Jamba 1.5 Large vs Pixtral-12B.

Which is better, Jamba 1.5 Large or Pixtral-12B?

Jamba 1.5 Large significantly outperforms across most benchmarks. Jamba 1.5 Large is made by AI21 Labs and Pixtral-12B is made by Mistral AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Jamba 1.5 Large compare to Pixtral-12B in benchmarks?

Jamba 1.5 Large scores ARC-C: 93.0%, GSM8k: 87.0%, MMLU: 81.2%, Arena Hard: 65.4%, TruthfulQA: 58.3%. Pixtral-12B scores DocVQA: 90.7%, ChartQA: 81.8%, VQAv2: 78.6%, MT-Bench: 76.8%, HumanEval: 72.0%.

Is Jamba 1.5 Large cheaper than Pixtral-12B?

Pixtral-12B is 13.3x cheaper for input tokens. Jamba 1.5 Large costs $2.00/M input and $8.00/M output via bedrock. Pixtral-12B costs $0.15/M input and $0.15/M output via mistral.

What are the context window sizes for Jamba 1.5 Large and Pixtral-12B?

Jamba 1.5 Large supports 256K tokens and Pixtral-12B 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 Jamba 1.5 Large and Pixtral-12B?

Key differences include context window (256K vs 128K), input pricing ($2.00 vs $0.15/M), multimodal support (no vs yes), licensing (Jamba Open Model License vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Jamba 1.5 Large and Pixtral-12B?

Jamba 1.5 Large is developed by AI21 Labs and Pixtral-12B is developed by Mistral AI.