Claude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/MClaude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/M
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AI21 Labs
AI21 LabsEfficient

Jamba 1.5 Mini

Efficient

Smaller Jamba 1.5 — same SSM/Transformer hybrid, single-GPU friendly. Aimed at cheap long-context inference.

Jamba 1.5 Mini is a efficient AI model from AI21 Labs. It costs $0.200 per million input tokens and $0.400 per million output tokens (blended $0.260/M), with a 256K-token context window.

Released Aug 2024Modalities textOfficial model page ↗Provider pricing ↗API docs ↗Compare with another model →Estimate monthly cost →
INPUT
$0.200/M
per million input tokens
OUTPUT
$0.400/M
per million output tokens
BLENDED 70/30
$0.260/M
default reference rate · how it's calculated →
CONTEXT
256K
256,000 tokens
What it's good at
  • Single-GPU
  • Long context economics
  • Open weights (Jamba license)
Typical use cases
  • Long-document RAG on a budget
  • On-prem long context
Benchmarks
vs. best public score
MMLU70%
Multitask academic knowledge across 57 subjects.
HumanEval41%
Python function synthesis from docstrings.
LMArena Elo1130 Elo
Crowd-sourced head-to-head preference Elo rating.
Hand-curated from each provider's published reports and public leaderboards. Methodology varies across sources — treat as directional rather than authoritative.
More from AI21 Labs
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Jamba 1.5 Large
Frontier · 256K ctx
in $2.000/Mout $8.000/M
Jamba Instruct
Previous · 256K ctx
in $0.500/Mout $0.700/M
Frequently asked questions

How much does Jamba 1.5 Mini cost?

Jamba 1.5 Mini costs $0.200 per million input tokens and $0.400 per million output tokens, for a blended reference rate of $0.260 per million tokens.

What is Jamba 1.5 Mini's context window?

Jamba 1.5 Mini supports up to 256K tokens of context (256,000 tokens).

What is Jamba 1.5 Mini best for?

Jamba 1.5 Mini is well suited to Single-GPU, Long context economics and Open weights (Jamba license).

Who makes Jamba 1.5 Mini?

Jamba 1.5 Mini is developed and served by AI21 Labs. It was released in Aug 2024.