Alternatives?
ModelScoreCostPer taskWhat changes
bBettermammoth-1 (27B)Open+50%—$0 / —Context: 131K → 16K+1bOpenelephant-1 (9B)+32%—$0 / —Context: 131K → 16K+1
BetterDecider v1.2Open+48%—$0.02 / —Memory (4-bit): 5.2 GB → 15 GBABetterAutoTrust-JEV-27B v1.1Open+48%——Memory (4-bit): 5.2 GB → 16 GBSBetterStartLux-Decision v1.1 27BOpen+48%——Memory (4-bit): 5.2 GB → 16 GBModelScoreCostPer taskWhat changes
Nothing here yet.
ModelScoreCostPer taskWhat changes
bmammoth-1 (27B)Open+50%—$0 / —Context: 131K → 16K+1Decider v1.2Open+48%—$0.02 / —Memory (4-bit): 5.2 GB → 15 GBAAutoTrust-JEV-27B v1.1Open+48%——Memory (4-bit): 5.2 GB → 16 GBSStartLux-Decision v1.1 27BOpen+48%——Memory (4-bit): 5.2 GB → 16 GBvD3 TurboOpen+47%——Context: 131K → 33K+1ModelScoreCostPer taskWhat changes
belephant-1 (9B)Open+32%—$0 / —Context: 131K → 16K+1Decider Flash v1.2Open+19%—$0.01 / —vD3 FlashOpen+19%——OOneJev1.6 9BOpen+16%——Memory (4-bit): 5.2 GB → 5.5 GBFfrontier-infra Jebadiah 9B v2.1 (t1e)Open+11%——Memory (4-bit): 5.2 GB → 5.7 GBModelScoreCostPer taskWhat changes
NDrex v2.0Open+15%—$0.06 / —Memory (4-bit): 5.2 GB → 21 GBNDrex Maxn/a—$0.06 / —All Nace.AI models →Run it yourself
estimateFits on✓ 8 GB (phone, laptop) · compressed✓ 16 GB · 8-bit✓ 24 GB GPU · full quality✓ 48 GB GPU · full quality✓ 80 GB GPU · full quality
Licencenace-ai-open-rail-mcommercial use with conditions
History
2 versionsBenchmarks
in Decision modelsFAQ
How much does Drex v1.5 cost?›
$0.04 per 1M input tokens and — per 1M output tokens (cheapest host: DeepInfra).
Is Drex v1.5 free to use?›
There is no free API; the cheapest paid price is $0.04 per 1M input tokens. The weights are open, so you can run it yourself.
How good is Drex v1.5, and what is it best at?›
#44 of 99 in Decision models.
Is Drex v1.5 better than vLLM-SR Decision 2.0 Lux 9B?›
On Community Decision Index 0.4.1, Drex v1.5 scores 45.8 vs 46 — about the same.
How can I use Drex v1.5?›
Through the API of DeepInfra, OpenRouter.
What is the context window of Drex v1.5?›
131K tokens.
When was Drex v1.5 released? Is there a newer version?›
Released 2026-09-28. It is the current version in its line.
Is Drex v1.5 open source?›
Yes, the weights are open (nace-ai-open-rail-m licence).
Can I run Drex v1.5 locally?›
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
Can Drex v1.5 read images?›
No, it accepts text only.
What is Drex v1.5?›
Drex v1.5 is an open-weights language model from Nace.AI, released Sep 2026.
What are the best alternatives to Drex v1.5?›
mammoth-1 (27B) (better), elephant-1 (9B) (open weights).