AI21 Labs • Released 2026

Jurassic 4

AI21’s next evolutionary successor in the Jurassic family with extended context and optimized generation.

$3.00 / 1M tokens
256k context
86.8% overall score

Performance Benchmarks

MMLU (General Knowledge)

Measures broad knowledge across 57 subjects

87.5%

Coding Performance

Code generation, debugging, and understanding

86%

Reasoning & Logic

Complex problem-solving and analytical thinking

87%

Overall Score: 86.8% - Excellent performance, top-tier model

About Jurassic 4

AI21’s next evolutionary successor in the Jurassic family with extended context and optimized generation.

Jurassic 4 is designed for content generation, enterprise ai, research assistance, making it an ideal choice for developers and businesses looking for balanced AI capabilities. With a context window of 256k, it can handle standard conversations and documents.

Priced at $3.00 per million tokens, Jurassic 4 offers balanced cost-to-performance ratio. It's particularly well-suited for enterprise content generation, document understanding, chat assistants.

Key Strengths

  • High-quality text generation
  • Support for larger context sizes
  • API-first enterprise tooling
  • Multimodal capabilities
  • Flexible scaling

Limitations to Consider

  • Closed-source
  • Benchmark transparency varies
  • Smaller ecosystem than hyperscalers
  • Premium pricing
  • Less global coverage in some regions

Ideal Use Cases

Jurassic 4 excels in the following applications and scenarios:

Enterprise content generation
Document understanding
Chat assistants
Developer APIs
RAG workflows

Pricing & Cost Analysis

Price per 1M tokens $3.00

Mid-range pricing with strong capabilities

10M tokens/month
$30.00
~300K words
100M tokens/month
$300.00
~3M words
1B tokens/month
$3000.00
~30M words

💡 Cost Tip: For applications processing over 1 billion tokens monthly, consider exploring more cost-effective alternatives for non-critical tasks.

Quick Stats

Provider AI21 Labs
Release Date 2026
Context Window 256k
Max Output 256,000
Overall Score 86.8%
Vision Support ✓ Yes
Function Calling ✓ Yes

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Frequently Asked Questions

What is Jurassic 4 best used for?

Jurassic 4 is specifically optimized for content generation, enterprise ai, research assistance. It excels in enterprise content generation, document understanding, chat assistants, making it ideal for both individuals and enterprises looking for reliable AI capabilities in these areas.

How much does Jurassic 4 cost?

Jurassic 4 is priced at $3.00 per million tokens. For typical usage of 10 million tokens per month (approximately 300,000 words), this translates to $30.00 monthly. This pricing offers a good balance between cost and capability.

How does Jurassic 4 compare to GPT-4?

Jurassic 4 offers competitive or superior performance with a coding score of 86% and reasoning score of 87%. At $3.00 per million tokens, it's more cost-effective than GPT-4 Turbo's $10.00 pricing. See detailed comparison →

What is the context window size?

Jurassic 4 has a 256k context window, which is suitable for standard conversations and documents.

Ready to Try Jurassic 4?

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