AI21 Labs Jamba 2.0 vs Meta Llama 3.1 405B

Name: AI21 Labs Jamba 2.0
Brand: AI21 Labs
SKU: jamba-2-0

Looking for an honest AI21 Labs Jamba 2.0 vs Meta Llama 3.1 405B comparison in 2026? We scored both ai language models on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. Both products score nearly identically (62/100 vs 62/100) — this is a genuine toss-up that hinges on which specs matter most for your use case. The widest gap is in display, where the AI21 Labs Jamba 2.0 pulls noticeably ahead.

UNENTSCHIEDEN

AI21 Labs

Prices may vary · We may earn a commission on purchases. Learn more

AI Matrix

AI21 Labs Jamba 2.0 and Meta Llama 3.1 405B are closely matched ai language models devices with nearly identical overall scores (62 vs 62). The best choice depends on which specific features matter most to you.

Reviewed by VersusMatrix Editorial Team|Our methodology

Spezifikationsvergleich

Punktaufteilung

AI21 Labs Jamba 2.0Meta Llama 3.1 405B

Benchmark (MMLU)30% weight

Meta Llama 3.1 405B Gewinner

Cost Efficiency20% weight

100

Unentschieden

Arena ELO20% weight

Unentschieden

Context Window10% weight

AI21 Labs Jamba 2.0 Gewinner

Speed (tok/s)10% weight

AI21 Labs Jamba 2.0 Gewinner

Coding (HumanEval)10% weight

Meta Llama 3.1 405B Gewinner

Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.

AI21 Labs Jamba 2.0

✓ Pros

●Better display score
●Better battery score

✗ Cons

●Lower camera score
●Lower performance score

Meta Llama 3.1 405B

✓ Pros

●Higher performance score
●Better camera score

✗ Cons

●Weaker battery score
●Lower display score

💰 Token Pricing (per 1M tokens)

Lower cost = better value. Free = open-source self-hosted.

Metric	Jamba 2.0	3.1 405B
Input (Prompt)	$0.20/1M	✓Free/1M
Output (Completion)	$0.40/1M	✓Free/1M
Open Source	Proprietary	✓ Free

⚡ Context Window & Speed

Context Window (tokens)

Jamba 2.0256K

3.1 405B128K

Metric	Jamba 2.0	3.1 405B
Max Output	✓8,192 tok	4,096 tok
Speed	✓150 tok/s	30 tok/s
Time to First Token	✓300ms	1.5s
Languages	✓40+	8+

📊 Benchmark Scores

Higher is better. Industry-standard AI evaluation benchmarks.

Jamba 2.0

3.1 405B

MMLU (Knowledge)

84.0|88.6

Jamba 2.0

3.1 405B

HumanEval (Coding)

80.0|89.0

Jamba 2.0

3.1 405B

MATH (Mathematics)

72.0|73.8

Jamba 2.0

3.1 405B

GPQA (Expert Q&A)

58.0|51.1

Jamba 2.0

3.1 405B

Chatbot Arena ELO

1280.0|1270.0

Jamba 2.0

3.1 405B

🔧 Capabilities

Feature	Jamba 2.0	3.1 405B
Reasoning / Chain-of-Thought	✕	✕
Vision (Image Input)	✕	✕
Audio Input	✕	✕
Video Input	✕	✕
Image/Audio Output	✕	✕
Function Calling / Tools	✓	✓
JSON Mode	✓	✓
Real-time Web Access	✕	✕
Fine-tuning Support	✕	✓
Batch API	✓	✓
Streaming	✓	✓
Open Source	✕	✓

ℹ️ Model Details

Field	Jamba 2.0	3.1 405B
Provider	AI21 Labs	Meta
Parameters	—	405B
Knowledge Cutoff	2025-03	2023-12
License	Commercial	Llama 3.1 Community
Best For	long contextenterprisedocument processingsummarization	open sourceself hostingfine tuningenterprise privacy

Wer sollte kaufen

Buy AI21 Labs Jamba 2.0 if…

The AI21 Labs Jamba 2.0 is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

Buy Meta Llama 3.1 405B if…

The Meta Llama 3.1 405B is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

AI21 Labs Jamba 2.0 vs Meta Llama 3.1 405B — FAQ

AI21 Labs Jamba 2.0 vs Meta Llama 3.1 405B: which is better?

Is AI21 Labs Jamba 2.0 better than Meta Llama 3.1 405B?

Both products score similarly — it depends on your priorities.

Which is cheaper, AI21 Labs Jamba 2.0 or Meta Llama 3.1 405B?

Check the latest prices using the buy links above.

Who should buy the AI21 Labs Jamba 2.0?

The AI21 Labs Jamba 2.0 is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

Who should buy the Meta Llama 3.1 405B?

The Meta Llama 3.1 405B is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

Reviewed by VersusMatrix Editorial Team

Last updated: April 28, 2026

Editorial guidelines

Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.

AI21 Labs Jamba 2.0 vs Meta Llama 3.1 405B

AI Matrix

Spezifikationsvergleich

Jamba 2.0

Llama 3.1 405B

Punktaufteilung

AI21 Labs Jamba 2.0

Meta Llama 3.1 405B

💰 Token Pricing (per 1M tokens)

⚡ Context Window & Speed

📊 Benchmark Scores

🔧 Capabilities

ℹ️ Model Details

Wer sollte kaufen

AI21 Labs Jamba 2.0 vs Meta Llama 3.1 405B — FAQ

AI21 Labs Jamba 2.0 vs Meta Llama 3.1 405B: which is better?

Is AI21 Labs Jamba 2.0 better than Meta Llama 3.1 405B?

Which is cheaper, AI21 Labs Jamba 2.0 or Meta Llama 3.1 405B?

Who should buy the AI21 Labs Jamba 2.0?

Who should buy the Meta Llama 3.1 405B?

Ähnliche Vergleiche