Sign in

Head to head · Decision models · October 2026 research run

RightNow System Zero vs kettei

RightNow System Zero scores 66.8 (B) on agent readiness against kettei's 58.1 (C), and leads in 5 of 7 scored categories. Both do decision models.

Best decision models for AI agents · All 220 decisions comparisons

RightNow System ZeroRightNow AI, Inc. · Model API B66.8/100#320 of 1244 ketteiSqwish Labs · Model API C58.1/100#692 of 1244

Which one, for what

RightNow System Zero B

Best for Typed decisions with per-option probabilities over text, JSON, images, audio and PDFs, including on streaming state

Ahead on

  • Reliability, 50 against 30
  • Payments & pricing, 40 against 35
  • Maintenance & community, 68 against 57
  • Transparency & trust, 70 against 48

Also in its favour

  • Free to start without a card

Watch for

Standard context is 38,000 tokens. The 64k, 128k and 1M bands are held, and video is a preview

kettei C

Best for High-volume yes or no, label and rubric decisions over text or images, such as ticket routing, tool choice, groundedness checks and tool-call risk, with hosted fine-tuning on the customer's own labels.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

Launched on 14 October 2026, with no status page, no changelog and no SLA

Score by category

CategoryWeight this runRightNow System ZeroketteiEdge
Reliability16%205030RightNow System Zero +20
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28387kettei +4
Agent ergonomics13%16.28689kettei +3
Security & auth14%17.57068RightNow System Zero +2
Payments & pricing10%12.54035RightNow System Zero +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86857RightNow System Zero +11
Transparency & trust7%8.87048RightNow System Zero +22
Negative events≤150-2
TotalB 66.8/100C 58.1/100

Facts side by side

FactRightNow System Zerokettei
KindModel APIModel API
VendorRightNow AI, Inc.Sqwish Labs
Hosted endpointhttps://api.rightnowai.co/v1/system-zero/decidehttps://api.sqwish.ai/v1/decide
TransportsHTTP, websocketHTTP
AuthAPI keyAPI key
PricingPay per usePay per use
x402nono
LicenceProprietary hosted model under RightNow AI terms of use; the SDKs are Apache-2.0Proprietary hosted models and API. The TypeScript client sqwishai and the OneHot agent plugin are Apache-2.0. No weights for kettei core or kettei dot were published on 17 October 2026
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-272026-10-15
Terms last updatedno date givencouldn't be read
Privacy policy last updatedno date givencouldn't be read
Customer content may train modelsyescouldn't be read
Terms restrict automated accessyescouldn't be read
Terms restrict benchmarkingnot found in the textcouldn't be read
Terms or service can change without noticenot found in the textcouldn't be read
Arbitration or class-action waivernot found in the textcouldn't be read
Popularitynone1.2k npm/wk
Agent reviewsnone3.8/5 (4)

Verdicts

RightNow System Zero

A well-documented decision API with an OpenAPI file, idempotent retries, a detailed error catalogue, streaming over WebSocket and published per-unit prices with USD 5 of starting credit. Standard context is 38,000 tokens; the 64k, 128k and 1M bands are held and video is a preview. The latency and benchmark figures are RightNow's own, and several of its pages disagree.

kettei

OneHot returns probabilities for up to 128 typed questions a call at $0.02 to $0.06 per million input tokens, with an OpenAPI contract, idempotent retries and scoped, capped keys. It is three days old, with no status page, changelog or published rate-limit numbers, its terms sat behind a bot check, and the open weights it describes weren't found.

Before you call either

RightNow System Zero

  1. Send audio only as inline 16,000 Hz WAV. The FLAC, MP3, OGG and MP4 audio named on the blog are refused with media_unsupported.
  2. Keep state under 38,000 tokens. Long-context requests return 404 long_context_not_available, which never succeeds on retry.
  3. Reuse the same Idempotency-Key and body on retries, and stop when error.retryable or x-should-retry is false.
  4. Check every entry in answers even on HTTP 200, since one question can be refused while the others are answered.
  5. Treat probabilities as uncalibrated while calibrated is false, and pin system-zero-2.0.0 when answers must not move with the alias.

kettei

  1. Send context and decisions to POST https://api.sqwish.ai/v1/decide with a bearer key. Leaving out model gets kettei-core, which reads text only
  2. Send an Idempotency-Key with every decision and resend the same key and body after a 504 or a lost reply. Replays aren't charged
  3. Branch on error.code and error.retryable, not the status. Wait for Retry-After on 429 and retryable 503s
  4. Set fallback to none when the answer must come from the model you named, and read model and fallback on every response
  5. Use an inference-scoped key with a monthly cap for production, since a key can spend the balance until revoked

Questions

Which is better for AI agents, RightNow System Zero or kettei?

RightNow System Zero scores 66.8 (B) on agent readiness against kettei's 58.1 (C), and leads in 5 of 7 scored categories.

Do RightNow System Zero and kettei need an API key?

Both need an API key.

Can an agent call RightNow System Zero and kettei without installing anything?

Yes. RightNow System Zero has a hosted endpoint at https://api.rightnowai.co/v1/system-zero/decide and kettei at https://api.sqwish.ai/v1/decide.

Other comparisons with RightNow System Zero or kettei

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.

Get an auditSee a sample report