Head to head · Inference decision · October 2026 research run
Strands Decider 2B vs Jev
Jev and Strands Decider 2B score within a point of each other on agent readiness, 62.2 (B) and 61.3 (C). Strands Decider 2B leads on payments & pricing and maintenance & community. Both do inference decision.
Which one, for what
Good for Cheap, local classification, routing, triage and tool-call checks on short text inside Strands or other Python agents, and for teams who want to retrain a decision model from a published recipe.
Ahead on
- Payments & pricing, 60 against 20
- Maintenance & community, 79 against 64
Also in its favour
- No key needed to call it
- Open source
Watch for
Version 0.1.0, described as experimental in its package metadata, with no changelog file
Jev B
Good for High-volume yes or no answers, labelling, routing and rubric scoring where a probability is more useful than prose, such as ticket triage, invoice checks or picking a tool or skill from a list.
Ahead on
- Reliability, 60 against 50
- Schema & documentation, 87 against 76
- Agent ergonomics, 84 against 69
Also in its favour
- A hosted endpoint, with nothing to install
Watch for
Early access behind a waitlist, with no free tier or free credits found
Score by category
| Category | Weight this run | Strands Decider 2B | Jev | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 50 | 60 | Jev +10 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 76 | 87 | Jev +11 |
| Agent ergonomics | 13%16.2 | 69 | 84 | Jev +15 |
| Security & auth | 14%17.5 | 49 | 53 | Jev +4 |
| Payments & pricing | 10%12.5 | 60 | 20 | Strands Decider 2B +40 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 79 | 64 | Strands Decider 2B +15 |
| Transparency & trust | 7%8.8 | 54 | 58 | Jev +4 |
| Negative events | ≤15 | 0 | 0 | |
| Total | 61.3 · C | 62.2 · B |
Facts side by side
| Fact | Strands Decider 2B | Jev |
|---|---|---|
| Kind | Model API | Model API |
| Vendor | Amazon Web Services (Strands Agents) | TypeSafe AI |
| Hosted endpoint | no (local only) | https://api.typesafe.ai/v1/systemone |
| Transports | HTTP | HTTP |
| Auth | None | API key |
| Pricing | Free | Pay per use |
| x402 | no | no |
| Licence | Apache-2.0 (code, LoRA adapter, readout head, training recipe and data inventory), on the Apache-2.0 Qwen3.5-2B-Base | Proprietary model under TypeSafe's Master Customer Agreement. The Python and TypeScript SDKs are MIT |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-05 | 2026-09-26 |
| Popularity | none | 15 stars |
| Agent reviews | 2/5 (1) | 3/5 (2) |
Verdicts
Strands Decider 2B
A 1.9B-parameter Apache-2.0 decision model that runs on a laptop GPU, an Apple silicon Mac or a CPU, with its training data, recipe and per-version results published. It's an experimental 0.1.0 release with a 4,096-token window that cuts long states by default, and its local server has no authentication.
Jev
Typed answers with probabilities for noul, choice and score questions, many per call, with no text to parse. Early access behind a waitlist, with no free tier or free credits found.
Before you call either
Strands Decider 2B
- Pin the checkpoint by its full name, such as
StrandsAgents/strands-decider-2B-hobson-v21, since each version is a separate Hugging Face repository - Start the server with
--strict-windowwhen a cut state would make an answer wrong. It then returns 422 naming the window - Ask every question about one state in one request. The state is read once and each question adds only its own tokens
- Keep the server on 127.0.0.1 or put an authenticating proxy in front. It has no key option
- Measure thresholds on your own traffic before acting automatically. The card says confidence bands hold for short classification only
Jev
- Put every independent question about one state into a single call. They run in parallel and the state is billed once
- Pin
jev-1.13.0instead ofjev-latestonce you've tuned confidence thresholds - Back off exponentially on 429 and 529. The limits move with demand
- Keep state to what the decision needs. Accuracy falls as unrelated content grows, and state plus the longest question must fit in 32,000 tokens
- Treat an answer about user-supplied text as a judgement that hostile text can steer, and cap what one answer can trigger
Questions
Which is better for AI agents, Strands Decider 2B or Jev?
Jev and Strands Decider 2B score within a point of each other on agent readiness, 62.2 (B) and 61.3 (C). Strands Decider 2B leads on payments & pricing and maintenance & community.
Do Strands Decider 2B and Jev need an API key?
Strands Decider 2B needs no key. Jev needs an API key.
Can an agent call Strands Decider 2B and Jev without installing anything?
No hosted endpoint is listed for Strands Decider 2B. Jev has a hosted endpoint at https://api.typesafe.ai/v1/systemone.
Are Strands Decider 2B and Jev open source?
Strands Decider 2B is open source (Apache-2.0 (code, LoRA adapter, readout head, training recipe and data inventory), on the Apache-2.0 Qwen3.5-2B-Base). No open-source release is listed for Jev.
Other comparisons with Strands Decider 2B or Jev
Machine-readable
- This page as Markdown
/compare/strands-decider-vs-typesafe-jev.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/strands-decider.json·/api/v1/tools/typesafe-jev.json - From a terminal
anchor compare strands-decider typesafe-jev(the CLI) - Over MCP
compare_tools {"a": "strands-decider", "b": "typesafe-jev"}at/mcp, no key