AI21 Labs vs GreenPT: Token Pricing, Speed & Intelligence
Full comparison of AI21 Labs and GreenPT — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Rates sourced from public APIs — verify before use.
AI21 Labs
Jamba 1.6 — hybrid SSM-Transformer models with 256K context
AI21 Labs develops the Jamba model family, which uses a hybrid SSM (Mamba) and Transformer architecture. Jamba 1.6 Large and Mini offer 256K token context windows at competitive prices. The hybrid architecture delivers faster inference and lower memory usage than pure-Transformer models of comparable size.
GreenPT
European LLM inference with EUR pricing
GreenPT (greenpt.com) is an LLM inference provider offering access to models including Kimi, GLM, DeepSeek, and MiniMax families via an OpenAI-compatible API, with pricing denominated in EUR.
Key metric comparison
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Live token pricing
Strengths and weaknesses
AI21 Labs
Key differentiators
Frequently asked questions
AI21 Labs FAQs
What is the Jamba architecture?
Jamba uses a hybrid of Mamba (SSM) and Transformer layers. This reduces memory usage and improves throughput on long sequences compared to pure-Transformer models, while maintaining strong reasoning performance.
How much does AI21 Labs API cost?
Jamba 1.6 Large is $2.00/$8.00 per 1M input/output tokens. Jamba 1.6 Mini is $0.20/$0.40 per 1M tokens. Both support 256K context. See ai21.com/pricing for current rates.
What context window does Jamba 1.6 support?
Both Jamba 1.6 Large and Jamba 1.6 Mini support 256K token context windows, making them suitable for long-document analysis and extended conversations.
GreenPT FAQs
What is GreenPT?
GreenPT is an LLM inference provider offering access to models including Kimi, GLM, DeepSeek, and MiniMax families. See greenpt.com for details.
What currency does GreenPT use for pricing?
GreenPT prices are denominated in EUR. See docs.greenpt.ai/pricing for current rates.
Is the GreenPT API OpenAI-compatible?
GreenPT provides an OpenAI-compatible API. See docs.greenpt.ai for endpoint details.
Provider resources
AI21 Labs — Jamba 1.6 — hybrid SSM-Transformer models with 256K context
AI21 Labs develops the Jamba model family, which uses a hybrid SSM (Mamba) and Transformer architecture. Jamba 1.6 Large and Mini offer 256K token context windows at competitive prices. The hybrid architecture delivers faster inference and lower memory usage than pure-Transformer models of comparable size.
Jamba's hybrid SSM-Transformer architecture enables 256K context at lower memory and latency cost than pure-Transformer models — with Jamba 1.6 Mini among the cheapest 256K-context options available.
GreenPT — European LLM inference with EUR pricing
GreenPT (greenpt.com) is an LLM inference provider offering access to models including Kimi, GLM, DeepSeek, and MiniMax families via an OpenAI-compatible API, with pricing denominated in EUR.
Key strengths compared
AI21 Labs
- Hybrid SSM-Transformer architecture delivers faster inference than pure-Transformer models
- 256K token context window on both Jamba 1.6 Large and Mini
- Jamba 1.6 Mini at $0.20/$0.40 per 1M tokens is highly cost-competitive
- Smaller model family than frontier labs — two models vs dozens at OpenAI or Anthropic
- Less ecosystem support than OpenAI-compatible providers
GreenPT
Key weaknesses compared
AI21 Labs
- Smaller model family than frontier labs — two models vs dozens at OpenAI or Anthropic
- Less ecosystem support than OpenAI-compatible providers
- No image, audio, or multimodal models
GreenPT
Provider category context
AI21 Labs is a frontier lab, founded in 2017. GreenPT is a inference api. AI21 Labs as a frontier lab trains and serves its own proprietary models. GreenPT as an inference API provider hosts open-weight models — typically offering lower prices for equivalent capability tiers but without access to proprietary frontier models.
How to choose between them
Choose AI21 Labs if you need Long-context tasks. Choose GreenPT if you need . For high-volume production workloads, run a cost comparison using the token pricing table above with your actual prompt/completion token ratio — the cheapest provider depends heavily on your input-to-output token ratio.