Jamba 1.7 Large

Jul 2025
Jamba 1.7 Large
Compare in
on
—per task?
$2 / $8per 1M in / out
—output speed?
256Kcontext

Ranking?

Strong at

C
Tool calling#211 of 242Reasoning#320 of 334Science#281 of 312Long context#240 of 273Knowledge#237 of 318Instructions#183 of 245

Alternatives?

ModelScoreCostPer taskWhat changes
CheaperMuse Spark 1.3max×7.9-43%$1.60Only auto tool_choice is supported+5BetterGPT-6 Lunalow×3.5-94%$0.005Function calling only with none · Chat Completions+3OpenDeepSeek V4.1 Flash 1017max×7.4-85%$0.26Memory (4-bit): 239 GB → 458 GB+5CheaperGrok 4.7xhigh×7.7-14%$3.74Reasoning cannot be disabled+4CheaperMiMo v2.6 ProthinkingOpen×7.6-84%$0.13Memory (4-bit): 239 GB → 615 GB+4

Run it yourself

estimate
Fits on✗ 8 GB (phone, laptop)✗ 16 GB✗ 24 GB GPU✗ 48 GB GPU✗ 80 GB GPU
Licencejamba-open-model-licensecommercial use with conditions

Benchmarks

all categories
Chat & Knowledge
Humanity's Last Exam3.7#323
AA Omniscience Index-54.9#238
CritPt (physics)0#180
AA Intelligence Index 4.3.2≈6.1#292
AA Omniscience · Accuracy20.6#147
AA Omniscience · Hallucination Rate95.1#306
AA-LCR (long context) 1.119.3#242
GPQA Diamond39#284
AIME 2025 · AA archived2.3#136
Coding
Terminal-Bench Hard (version unstated)2.3#183
LiveCodeBench · AA archived18.1#137
Agents & Tool Use
τ²-bench · AA13.5#214
Writing & Language
IFBench (instructions)35.2#185

FAQ

How much does Jamba 1.7 Large cost?›

$2 per 1M input tokens and $8 per 1M output tokens.

Is Jamba 1.7 Large free to use?›

There is no free API; the cheapest paid price is $2 per 1M input tokens. The weights are open, so you can run it yourself.

How good is Jamba 1.7 Large, and what is it best at?›

#320 of 334 in Chat & Knowledge, #181 of 239 in Coding, #211 of 242 in Agents & Tool Use, #183 of 245 in Writing & Language.

Is Jamba 1.7 Large better than Qwen3.5 0.8B?›

On AA Intelligence Index 4.3.2, Jamba 1.7 Large scores 6.1 vs 6.1 — about the same.

How can I use Jamba 1.7 Large?›

Through the API of AI21 Labs.

What is the context window of Jamba 1.7 Large?›

256K tokens.

When was Jamba 1.7 Large released? Is there a newer version?›

Released 2025-07-07. It is the current version in its line.

Is Jamba 1.7 Large open source?›

Yes, the weights are open (jamba-open-model-license licence).

Can I run Jamba 1.7 Large locally?›

The weights are open and can be self-hosted; hardware needs are not confirmed yet.

Can Jamba 1.7 Large read images?›

No, it accepts text only.

What is Jamba 1.7 Large?›

Jamba 1.7 Large is an open-weights language model from AI21 Labs, released Jul 2025.

What are the best alternatives to Jamba 1.7 Large?›

Muse Spark 1.3 (cheaper), GPT-6 Luna (better), DeepSeek V4.1 Flash 1017 (open weights).