Overview
Intended useBest suited for speech recognition and transcription and text-to-speech synthesis. |
FamilyCtxdex SpeechSpeech recognition, synthesis and realtime audio family. |
AnnouncedAnnounced |
DeprecatedNot applicableModel is current. |
RetiredNot applicableModel is not retired. |
What it does
Capabilities carry their support status; tasks are labels, because seven descriptions would bury the section.
Capabilities (0)
None recordedNo capability is recorded for this model.Tasks (2)
Inputs & Outputs
Each modality is paired with the representation it is carried in, so a non-token model reads the same way a text one does.
Accepts
- AudioSpeech Audio
- TextPlain Text
Produces
- AudioSpeech Audio
- TextPlain Text
Technical Characteristics
A characteristic with no value states why it has none. An absence here is a recorded fact, not a gap in the page.
Availability
No recorded Commercial OfferingNo recorded Commercial Offering
No provider is recorded as serving this model, so there is no serving surface, no serving performance and no rate. That is not the same as unavailable, withdrawn, or priced at zero — it is the absence of a commercial record. What governs access is the licence.
Licence & Use ConditionsDerived chronology
Model Journey
Assembled from this model’s own lifecycle records, its snapshots, its providers’ offering and pricing history, and recorded succession. It is a view over those records, not a second source of truth, and undated lineage is deliberately not on it.
- Effective fromModelMajor
Model released
The first control expands this section in place, without filters or navigation. The second opens the standalone journey, which adds filtering on three axes, year grouping, per-event provenance and a shareable address.
Every date is the source record’s own effective date — a model lifecycle date, a snapshot release, an offering’s effective date, a pricing version’s effective-from. None of them is a load or capture timestamp.
Licence & Use Conditions
LicenceAgent Makers Proprietary Model Terms |
Version1.0 |
SPDX identifierNot applicableSPDX identifies open-source licences; these are proprietary terms. |
Legal textNo public URI recordedThe terms exist and are held internally; no public address has been published.Captured as of |
Use conditions (0)
None recordedNo condition constrains use of this model beyond its licence.Lifecycle & Lineage
Direct lineage
None recordedNo lineage relationship is recorded for this model.Recommended replacement for
None recordedNo replacement recommendation is recorded in either direction.Lifecycle history: Experimental on 2026-07-28.
Similar Industry Models
Captured as ofA positioning reference, not an equivalence claim. Each row states the axes it was drawn on, and covers only that part of this model's positioning.
GPT-Realtime-2.1
OpenAI
Selected as a close current reference for Ctxdex Speech 3 based on realtime audio, text audio in out, tool capable class.
Checked 2026-09-14 · High confidence
Gemini 3.1 Flash Live
Differences recorded: Preview.
Selected as a close current reference for Ctxdex Speech 3 based on text audio input, text audio output, realtime.
Checked 2026-09-14 · High confidence
GPT-Live-1
OpenAI
Selected as a reference current reference for Ctxdex Speech 3 based on full duplex voice.
Checked 2026-09-14 · High confidence
Comparison method CTXDEX_COMPARABLES_V1.