ctxdexSynthetic model data for learning
Retired modelProprietaryGeneral Purpose3Fast

Ctxdex Intelligence 3 Fast

Agent MakersCtxdex Intelligence

A third-generation Fast multimodal general-purpose model in the Ctxdex Intelligence family for complex reasoning, code generation, general language generation, and multimodal understanding.

AcceptsImage, TextProducesTextReleasedAnnouncedDeprecatedRetired

No rate is recorded for this model, so there is nothing to price. The pricing calculator is not yet built.

Data captured as of

This model is retired
The recorded replacement is Ctxdex Intelligence 4 Fast. Its offerings remain deprecated rather than withdrawn: they are still recorded, still effective-dated, and still priced. That is not the same as being unavailable.

Overview

Intended useBest suited for complex reasoning, code generation, general language generation, multimodal understanding, and tool-enabled workflows.
FamilyCtxdex IntelligenceConcentrated frontier-intelligence family spanning persistent capability/cost tiers.
AnnouncedAnnounced
DeprecatedDeprecated
RetiredRetired

What it does

Capabilities carry their support status; tasks are labels, because seven descriptions would bury the section.

Capabilities (3)

Explicit Reasoning · Partial support
Intrinsic explicit/deliberate reasoning support.
Structured Output
Intrinsic support for constrained/structured machine-readable output.
Tool Calling
Intrinsic support for requesting/invoking external tools/functions.

Tasks (4)

Code GenerationComplex ReasoningGeneral Language GenerationMultimodal Understanding

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

  • ImageRaster Image
  • TextChat Messages

Produces

  • 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.

Maximum context tokens128000
Maximum native output tokens16000
Architecture classDENSE_TRANSFORMER

Availability

Historical offerings only

No 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 That is not the same as unavailable, withdrawn, or priced at zero — it is the absence of a commercial record.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 Conditions
Historical offerings1
Downloadable distributionsNone recordedNo downloadable artefact has been published under these terms.

Derived 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.

8 events
  • Effective from
    AvailabilityNormal

    Agent Makers · First Party Managed Api: Retired

    Offering context: Agent Makers

    Synthetic provider retirement.

  • Effective from
    ModelMajor

    Model status changed to Retired

  • Effective from
    SuccessionMajor

    Recommended successor: Ctxdex Intelligence 4 Fast

  • Effective from
    AvailabilityNormal

    Agent Makers · First Party Managed Api: Deprecated

    Offering context: Agent Makers

    Synthetic provider deprecation.

  • Effective from
    ModelMajor

    Model status changed to Deprecated

  • Effective from
    AvailabilityMajor

    Agent Makers · First Party Managed Api: Active

    Offering context: Agent Makers

    Synthetic commercial activation.

Open full journey →

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

Successor Of of

Ctxdex Intelligence 4 Fast

Replaced by

Replaced by

Ctxdex Intelligence 4 Fast

Effective from

Lifecycle history: Active on 2025-09-16, then Deprecated on 2026-03-16, then Retired on 2026-08-16.

Similar Industry Models, as last compared

Captured as of

A positioning reference drawn while this model was current, and not maintained since — superseded on 2026-09-14. Each row states the axes it was drawn on.

GPT-5.6 Luna

OpenAI

Provider documentation
Frontier General PurposeCodingEfficiency

Broadly comparable on general-purpose language work and coding. Its efficiency-oriented positioning is also relevant. This row covers only part of the ctxdex model's capability positioning.

Gemini 3.8 Flash

Google

Provider documentation
Frontier General PurposeReasoningMultimodalCodingEfficiency

Broadly comparable on general-purpose language work, complex reasoning, multimodal understanding, and coding. Its efficiency-oriented positioning is also relevant.

Comparison method ctxdex-industry-comparable-method-v1.

Resolved from the ctxdex catalogue at build time. Every figure is a stored value or a derivation named in the read model; nothing on this page is computed in the browser.