Model Comparison
Claude 3 Opus vs Jamba 1.5 LargeWhich is better in 2026?
Claude 3 Opus significantly outperforms across most benchmarks. Jamba 1.5 Large is 8.6x cheaper per token.
Verdict: Claude 3 Opus vs Jamba 1.5 Large — which is better?
Claude 3 Opus (by Anthropic) and Jamba 1.5 Large (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.
Claude 3 Opus outperforms in 5 benchmarks (ARC-C, GPQA, GSM8k, MMLU, MMLU-Pro), while Jamba 1.5 Large is better at 0 benchmarks. Claude 3 Opus significantly outperforms across most benchmarks.
On price, Jamba 1.5 Large is roughly 8.6x 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 Claude 3 Opus if…
- you want the strongest raw capability — it leads on 5 of 5 shared benchmarks
Choose Jamba 1.5 Large if…
- cost matters — it's about 8.6x cheaper per token
- you process long inputs — it offers a 256,000 token context window
- you want the most recent training data — it shipped Aug 2024
- you need open weights you can self-host or fine-tune
Performance Benchmarks
Comparative analysis across standard metrics
Claude 3 Opus outperforms in 5 benchmarks (ARC-C, GPQA, GSM8k, MMLU, MMLU-Pro), while Jamba 1.5 Large is better at 0 benchmarks.
Claude 3 Opus significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Claude 3 Opus ($15.00/1M tokens) is 7.5x more expensive than Jamba 1.5 Large ($2.00/1M tokens).
For output processing, Claude 3 Opus ($75.00/1M tokens) is 9.4x more expensive than Jamba 1.5 Large ($8.00/1M tokens).
In conclusion, Claude 3 Opus is more expensive than Jamba 1.5 Large.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Jamba 1.5 Large accepts 256,000 input tokens compared to Claude 3 Opus's 200,000 tokens. Jamba 1.5 Large can generate longer responses up to 256,000 tokens, while Claude 3 Opus is limited to 200,000 tokens.
Input Capabilities
Supported data types and modalities
Claude 3 Opus supports multimodal inputs, whereas Jamba 1.5 Large does not.
Claude 3 Opus can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude 3 Opus
Jamba 1.5 Large
License
Usage and distribution terms
Claude 3 Opus is licensed under a proprietary license, while Jamba 1.5 Large uses Jamba Open Model License.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Jamba Open Model License
Open weights
Release Timeline
When each model was launched
Claude 3 Opus was released on 2024-02-29, while Jamba 1.5 Large was released on 2024-08-22.
Jamba 1.5 Large is 6 months newer than Claude 3 Opus.
Feb 29, 2024
2.3 years ago
Aug 22, 2024
1.9 years ago
5mo newerKnowledge Cutoff
When training data ends
Jamba 1.5 Large has a documented knowledge cutoff of 2024-03-05, while Claude 3 Opus'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 Claude 3 Opus's cutoff date.
—
Mar 2024
Provider Availability
Claude 3 Opus is available from Anthropic, Bedrock, Google. Jamba 1.5 Large is available from Bedrock, Google.
Claude 3 Opus
Jamba 1.5 Large
Outputs Comparison
Key Takeaways
Claude 3 Opus
View detailsAnthropic
Jamba 1.5 Large
View detailsAI21 Labs
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Claude 3 Opus and Jamba 1.5 Large side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Claude 3 Opus vs Jamba 1.5 Large.