Microsoft Decision 1

Oct 2026
Microsoft Decision 1
Compare in
on
—per task?
$0.042 / —per 1M in / out?
—output speed?
33Kcontext

Ranking?

Full ranking →
1D1 Ultra65.22Jev 1.1357.53Jev 1.1457.14Decider v1.256.25GLiDE53.96Microsoft Decision 153.87Decider v1.1 27B53.1

Benchmarks

in Decision models
AA Decision Index v1.053.8#6
AA Decision cost per task v1.00#6
AA Decision time per task v1.0207#10
AA Decision · Omniscience accuracy28.2#15
AA Decision · Omniscience non-hallucination rate39.8#2
AA Decision · Humanity's Last Exam text multiple-choice accuracy10.9#11
AA Decision · When2Call accuracy81.9#5
AA Decision · WildGuardTest average F188.2#12
JevBench v1.6.37 · api composite69.1#3

FAQ

How much does Microsoft Decision 1 cost?›

$0.042 per 1M input tokens and — per 1M output tokens (cheapest host: OpenRouter).

Is Microsoft Decision 1 free to use?›

There is no free API; the cheapest paid price is $0.042 per 1M input tokens.

How good is Microsoft Decision 1, and what is it best at?›

#6 of 15 in Decision models.

Is Microsoft Decision 1 better than GLiDE?›

On AA Decision Index v1.0, Microsoft Decision 1 scores 53.8 vs 53.9 — about the same.

How can I use Microsoft Decision 1?›

Through the API of OpenRouter.

What is the context window of Microsoft Decision 1?›

33K tokens.

When was Microsoft Decision 1 released? Is there a newer version?›

Released 2026-10-09. It is the current version in its line.

Is Microsoft Decision 1 open source?›

No, Microsoft Decision 1 is a closed model available through an API. The closest open-weights option here is Decider v1.2.

Can Microsoft Decision 1 read images?›

No, it accepts text only.

What is Microsoft Decision 1?›

Microsoft Decision 1 is a closed language model from Microsoft, released Oct 2026.

What are the best alternatives to Microsoft Decision 1?›

D1 Ultra (better), Decider v1.2 (open weights).