Jamba Reasoning 3B
Oct 2025
Jamba Reasoning 3BCompare inon
Benchmarks of Jamba Reasoning 3B13
BenchmarkByScoreRank
Overall1
Knowledge4
Science2
Coding1
Documents1
Legacy · saturated or no longer reported4
No benchmark matches
—per task?
self-host onlyprice
—output speed?
256Kcontext
Ranking?
Alternatives?
ModelScoreCostPer taskWhat changes
BetterGPT-6 Lunalow×3.8—$0.005Function calling only with none · Chat Completions+3IOpenK2 Horizon 7Bthinking×3.6—$0.30 / $1.20Memory (4-bit): 1.6 GB → 4.5 GB
BetterGranite 4.2 3BthinkingOpen+60%—$0.006Context: 256K → 128K+1
BetterGemma 4 E4BthinkingOpen+57%—$0.008Context: 256K → 128K+1BetterGPT-5.6 Lunalow×3.7—$0.01ModelScoreCostPer taskWhat changes
Nothing here yet.
ModelScoreCostPer taskWhat changes
GPT-6 Lunalow×3.8—$0.005Function calling only with none · Chat Completions+3Granite 4.2 3BthinkingOpen+60%—$0.006Context: 256K → 128K+1Gemma 4 E4BthinkingOpen+57%—$0.008Context: 256K → 128K+1GPT-5.6 Lunalow×3.7—$0.01GPT OSS 20BhighOpen+58%—$0.011Context: 256K → 131K+1ModelScoreCostPer taskWhat changes
IK2 Horizon 7BthinkingOpen×3.6—$0.30 / $1.20Memory (4-bit): 1.6 GB → 4.5 GBIK2 Horizon 3.7BthinkingOpen×2.8—$0.30 / $1.20Memory (4-bit): 1.6 GB → 2.5 GBGemma 4 12BthinkingOpen×2.5—$0.10 / $0.30Memory (4-bit): 1.6 GB → 6 GB
Qwen 3.5 9Bnon-thinkingOpen×2.3—$0.08 / $0.13Memory (4-bit): 1.6 GB → 4.8 GBQwen3.5 4BthinkingOpen×2.3—$0.03 / $0.15Memory (4-bit): 1.6 GB → 2.3 GBRun it yourself
estimateFits on✓ 8 GB (phone, laptop) · full quality✓ 16 GB · full quality✓ 24 GB GPU · full quality✓ 48 GB GPU · full quality✓ 80 GB GPU · full quality
LicenceApache-2.0free for commercial use
Benchmarks
all categoriesChat & Knowledge
Humanity's Last Exam3.8#321
AA Omniscience Index-57.7#245
CritPt (physics)0#180
AA Intelligence Index 4.3.2≈5.7#305
AA Omniscience · Accuracy6.7#306
AA-LCR (long context) 1.16.3#265
GPQA Diamond33.3#292
AIME 2025 · AA archived10.7#126
Coding
Agents & Tool Use
τ²-bench · AA15.8#209
Writing & Language
IFBench (instructions)52.4#108
FAQ
How much does Jamba Reasoning 3B cost?›
There is no per-unit API price: self-host only.
Is Jamba Reasoning 3B free to use?›
There is no free API. The weights are open, so you can run it yourself.
How good is Jamba Reasoning 3B, and what is it best at?›
#318 of 334 in Chat & Knowledge, #203 of 239 in Coding, #206 of 242 in Agents & Tool Use, #108 of 245 in Writing & Language.
Is Jamba Reasoning 3B better than MiniCPM-V 4.6 1.3B?›
On AA Intelligence Index 4.3.2, Jamba Reasoning 3B scores 5.7 vs 5.7 — about the same.
What is the context window of Jamba Reasoning 3B?›
256K tokens.
When was Jamba Reasoning 3B released? Is there a newer version?›
Released 2025-10-08. It is the current version in its line.
Is Jamba Reasoning 3B open source?›
Yes, the weights are open (Apache-2.0 licence).
Can I run Jamba Reasoning 3B locally?›
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
Can Jamba Reasoning 3B read images?›
No, it accepts text only.
What is Jamba Reasoning 3B?›
Jamba Reasoning 3B is an open-weights language model from AI21 Labs, released Oct 2025.
What are the best alternatives to Jamba Reasoning 3B?›
GPT-6 Luna (better), K2 Horizon 7B (open weights).