Jamba 1.5 Large: API Pricing, Context Window & Benchmarks
Jamba 1.5 Large is a language model from AI21 Labs, released in August 2024.
State-of-the-art hybrid SSM-Transformer instruction following foundation model, offering superior long context handling, speed, and quality.
Jamba 1.5 Large benchmarks
Rankings
Quality Tracker
Jamba 1.5 Large Performance Across Datasets
Scores sourced from the model's scorecard, paper, or official blog posts
llm-stats.com - Tue Jul 28 2026Jamba 1.5 Large pricing
Providers
Jamba 1.5 Large starts at $2.00 per million input tokens and $8.00 per million output tokens via Bedrock. See all 2 providers below with their per-token pricing, latency, throughput, and modality support.
| Provider | Input $/M | Output $/M | Context in / out | TTFT p50 / p95 s | Output avg / p5 c/s | Success 7d | Modalities in / out |
|---|---|---|---|---|---|---|---|
 Bedrock | $2.00 | $8.00 | 256.0K/256.0K | —/0.50 | 100/— | — | / |
 Google | $2.00 | $8.00 | 256.0K/256.0K | —/0.30 | 42/— | — | / |
Cached input is the discounted price for prompt tokens served from a provider cache. TTFT is time to first token. Output is characters per second; p5 is the sustained floor exceeded by 95% of observed requests. Success is calculated from completed versus failed requests over the trailing seven days.
Jamba 1.5 Large model size
Jamba 1.5 Large has 398 billion parameters. See how it compares to other models in the same parameter range.
Jamba 1.5 Large context window
Input and output token limits for Jamba 1.5 Large, plus how it ranks on long-context understanding.
Jamba 1.5 Large API
Available from the model provider
Jamba 1.5 Large has an official provider API. It is not currently routed through the LLM Stats gateway.
Read the official API documentationJamba 1.5 Large latency
Jamba 1.5 Large time to first token, sustained output throughput, and failed-request rate from live API traffic over the trailing 7 days.
Jamba 1.5 Large examples
Recent arena outputs from Jamba 1.5 Large, picked from the highest-ranked matchups.
Jamba 1.5 Large license
Jamba 1.5 Large is released under the Jamba Open Model License license, which restricts commercial use, has 398.0B parameters, has a knowledge cutoff of March 2024.
- License
- Jamba Open Model License
- Non-commercial
- Parameters
- 398.0B
- Knowledge cutoff
- March 2024
Jamba 1.5 Large resources
Official sources for Jamba 1.5 Large: api documentation, official launch post, model weights.
Jamba 1.5 Large vs other models
The most-compared alternatives to Jamba 1.5 Large are Gemini 1.5 Flash, Qwen3 VL 4B Thinking, Phi 4 Mini. Open any pair side-by-side for benchmarks, pricing, context, and latency.
Models like Jamba 1.5 Large
Models ranked just above and below Jamba 1.5 Large by LLM Stats score.
FAQ
Common questions about Jamba 1.5 Large.