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Jamba 1.5 Mini vs LongCat-2.5

LongCat-2.5 leads the LLM Stats Score 50.0 to -6.2. Jamba 1.5 Mini is 2.1x cheaper per token.

AI21 Labs · Meituan · Updated for 2026

Which is better?

LongCat-2.5 leads the overall LLM Stats Score 50.0 to -6.2, ranking #20 overall.

On price, Jamba 1.5 Mini is roughly 2.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

LongCat-2.5 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Jamba 1.5 Mini

  • cost matters — it's about 2.1x cheaper per token
  • you need open weights you can self-host or fine-tune

Choose LongCat-2.5

  • overall performance matters — it scores 50.0 and ranks #20 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

Jamba 1.5 Mini
AI21 Labs
LongCat-2.5
Meituan
Core performance indexes
LLM Stats Score
-6.2
#399
50.0
#20
Reasoning
-6.1
#389
48.3
#21
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.20 / M
$0.30 / M
Output price
$0.40 / M
$1.20 / M
Context window
256,144
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Jamba 1.5 Mini
LongCat-2.5
Math
-4.1#339
37.2#37
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

8 reported for Jamba 1.5 Mini · 23 for LongCat-2.5

No common benchmarks found

Jamba 1.5 Mini and LongCat-2.5don'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

Pricing Analysis

Price comparison per million tokens

Jamba 1.5 Mini costs less

For input processing, Jamba 1.5 Mini ($0.20/1M tokens) is 1.5x cheaper than LongCat-2.5 ($0.30/1M tokens).

For output processing, Jamba 1.5 Mini ($0.40/1M tokens) is 3.0x cheaper than LongCat-2.5 ($1.20/1M tokens).

In conclusion, LongCat-2.5 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 Nov 02 2026 • llm-stats.com
AI21 Labs
Jamba 1.5 Mini
Input tokens$0.20
Output tokens$0.40
Best providerAWS Bedrock
Meituan
LongCat-2.5
Input tokens$0.30
Output tokens$1.20
Best providerMeituan
Notice missing or incorrect data?

Model Size

Parameter count comparison

1548.0B diff

LongCat-2.5 has 1548.0B more parameters than Jamba 1.5 Mini, making it 2976.9% larger.

AI21 Labs
Jamba 1.5 Mini
52.0Bparameters
Meituan
LongCat-2.5
1.6Tparameters
52.0B
Jamba 1.5 Mini
1600.0B
LongCat-2.5

Context Window

Maximum input and output token capacity

LongCat-2.5 accepts 1,048,576 input tokens compared to Jamba 1.5 Mini's 256,144 tokens. Jamba 1.5 Mini can generate longer responses up to 256,144 tokens, while LongCat-2.5 is limited to 131,072 tokens.

AI21 Labs
Jamba 1.5 Mini
Input256,144 tokens
Output256,144 tokens
Meituan
LongCat-2.5
Input1,048,576 tokens
Output131,072 tokens
Mon Nov 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

LongCat-2.5 supports multimodal inputs, whereas Jamba 1.5 Mini does not.

LongCat-2.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Jamba 1.5 Mini

Text
Images
Audio
Video

LongCat-2.5

Text
Images
Audio
Video

Release Timeline

When each model was launched

Jamba 1.5 Mini was released on 2024-08-22, while LongCat-2.5 was released on 2026-11-01.

LongCat-2.5 is 27 months newer than Jamba 1.5 Mini.

Jamba 1.5 Mini

Aug 22, 2024

2.2 years ago

LongCat-2.5

Nov 1, 2026

-1 days ago

2.2yr newer

Knowledge Cutoff

When training data ends

Jamba 1.5 Mini has a documented knowledge cutoff of 2024-03-05, while LongCat-2.5'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 LongCat-2.5's cutoff date.

Jamba 1.5 Mini

Mar 2024

LongCat-2.5

—

Provider Availability

Jamba 1.5 Mini is available from Bedrock, Google. LongCat-2.5 is available from Meituan.

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

LongCat-2.5

meituan logo
Meituan
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Jamba 1.5 Mini and LongCat-2.5 side-by-side, then vote on the output you prefer.

Jamba 1.5 Mini
✓ Preferred
LongCat-2.5
Open in Playground

FAQ

Common questions about Jamba 1.5 Mini vs LongCat-2.5.

Which is better, Jamba 1.5 Mini or LongCat-2.5?

LongCat-2.5 leads the LLM Stats Score 50.0 to -6.2. Jamba 1.5 Mini is made by AI21 Labs and LongCat-2.5 is made by Meituan. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Jamba 1.5 Mini compare to LongCat-2.5 in benchmarks?

Jamba 1.5 Mini scores ARC-C: 85.7%, GSM8k: 75.8%, MMLU: 69.7%, TruthfulQA: 54.1%, Arena Hard: 46.1%. LongCat-2.5 scores MathVision: 96.5%, BrowseComp: 91.9%, CharXiv-R: 90.2%, Terminal-Bench 2.1: 88.4%, Video-MME: 85.2%.

Is Jamba 1.5 Mini cheaper than LongCat-2.5?

Jamba 1.5 Mini is 1.5x cheaper for input tokens. Jamba 1.5 Mini costs $0.20/M input and $0.40/M output via bedrock. LongCat-2.5 costs $0.30/M input and $1.20/M output via meituan.

What are the context window sizes for Jamba 1.5 Mini and LongCat-2.5?

Jamba 1.5 Mini supports 256K tokens and LongCat-2.5 supports 1.0M 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 LongCat-2.5?

Key differences include LLM Stats Score (-6.2 vs 50.0), context window (256K vs 1.0M), input pricing ($0.20 vs $0.30/M), multimodal support (no vs yes), licensing (Jamba Open Model License vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes Jamba 1.5 Mini and LongCat-2.5?

Jamba 1.5 Mini is developed by AI21 Labs and LongCat-2.5 is developed by Meituan.

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