ctxdexSynthetic model data for learning
Active modelOpen WeightReasoning1Distilled Large

Ctxdex Chintana 1 Large

Agent MakersCtxdex Efficient Reasoning

A first-generation distilled Large reasoning model in the Ctxdex Efficient Reasoning family for complex reasoning and general language generation.

AcceptsTextProducesTextReleasedAnnounced
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Data captured as of

Overview

Intended useBest suited for complex reasoning and general language generation.
FamilyCtxdex Efficient ReasoningDedicated reasoning and distillation 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 (2)

Explicit Reasoning
Intrinsic explicit/deliberate reasoning support.
Structured Output
Intrinsic support for constrained/structured machine-readable output.

Tasks (2)

Complex ReasoningGeneral Language Generation

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

  • 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 tokens24000
Architecture classDENSE_TRANSFORMER
Parameter count32.000000000000000000

Availability

Current offering available

Agent Makers

First Party Managed Api

Active offering
Effective from

Serving surfaces

Inference API · Active

Astavra Enterprise AI

Enterprise Managed Ai

Active offering
Effective from

Serving surfaces

Inference API · Active

Nimbrex Cloud

Cloud Managed Model

Active offering
Effective from

Serving surfaces

Batch API · ActiveInference API · Active

Oryventa Models

Hosted Open Model

Active offering
Effective from

Serving surfaces

Inference API · Active

Runvora Inference

Serverless Inference

Active offering
Effective from

Serving surfaces

Inference API · Active
Historical offeringsNone recorded
Downloadable distributions1

Distributions

A downloadable artefact under this model's licence. Format, precision and size are properties of the artefact, not of the model.

Open Weights

Available distribution
SAFETENSORSBF1664.5 GB
Available from

Serving Performance

Measured as of

Every figure is measured under the conditions beside it. Read without them, a latency number claims more than it can.

Measurement basis Synthetic ProfileMetrics 8
MetricTypical valueConditions
Output Tokens Per SecondSteady generated text-token rate after first token.38.0Token Per Second
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGProcessing Tier: STANDARDConcurrency Band: C1Output Size Band: ~512_TOKENS
Output Tokens Per SecondSteady generated text-token rate after first token.46.5Token Per Second
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGProcessing Tier: STANDARDConcurrency Band: C1Output Size Band: ~512_TOKENS
Output Tokens Per SecondSteady generated text-token rate after first token.41.3Token Per Second
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGProcessing Tier: STANDARDConcurrency Band: C1Output Size Band: ~512_TOKENS
Output Tokens Per SecondSteady generated text-token rate after first token.41.2Token Per Second
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGProcessing Tier: STANDARDConcurrency Band: C1Output Size Band: ~512_TOKENS
Time To First Token MsLatency from accepted request/start of generation to first generated text token.710Ms
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGInput Size Band: ~4K_TOKENSProcessing Tier: STANDARDConcurrency Band: C1
Time To First Token MsLatency from accepted request/start of generation to first generated text token.795Ms
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGInput Size Band: ~4K_TOKENSProcessing Tier: STANDARDConcurrency Band: C1
Time To First Token MsLatency from accepted request/start of generation to first generated text token.695Ms
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGInput Size Band: ~4K_TOKENSProcessing Tier: STANDARDConcurrency Band: C1
Time To First Token MsLatency from accepted request/start of generation to first generated text token.645Ms
Capacity Mode: SHARED_ON_DEMANDDelivery Mode: STREAMINGInput Size Band: ~4K_TOKENSProcessing Tier: STANDARDConcurrency Band: C1

Pricing Reference

Reference offering

Agent Makers · First Party Managed Api

Effective fromCaptured as of
MeterBasisRate
InputAudited base input-token rate$0.85 / 1000000Token
OutputAudited base output-token rate$3.6 / 1000000Token
Cached InputAudited base cached-input-token rate$0.085 / 1000000Token
View all pricing

Full pricing for a single offering is one step further in, from this model’s pricing page, because it is addressed by offering and this page carries the model. The calculator is disabled because it is not built.

4 other current offerings are priced separately. This is the publisher's own offering, chosen as the reference — it is not the cheapest by definition. Rates are not comparable across offerings unless meter, unit and conditions match.

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.

16 events5 scheduled ahead
  • Effective from
    PricingNormalUpcoming

    Agent Makers pricing scheduled

    Offering context: Agent Makers

    Scheduled to take effect on 2026-09-15. Not yet effective.

  • Effective from
    PricingNormalUpcoming

    Astavra Enterprise AI pricing scheduled

    Offering context: Astavra Enterprise AI

    Scheduled to take effect on 2026-09-15. Not yet effective.

  • Effective from
    PricingNormalUpcoming

    Nimbrex Cloud pricing scheduled

    Offering context: Nimbrex Cloud

    Scheduled to take effect on 2026-09-15. Not yet effective.

  • Effective from
    PricingNormalUpcoming

    Oryventa Models pricing scheduled

    Offering context: Oryventa Models

    Scheduled to take effect on 2026-09-15. Not yet effective.

  • Effective from
    PricingNormalUpcoming

    Runvora Inference pricing scheduled

    Offering context: Runvora Inference

    Scheduled to take effect on 2026-09-15. Not yet effective.

  • Effective from
    AvailabilityMajor

    Astavra Enterprise AI · Enterprise Managed Ai: Active

    Offering context: Astavra Enterprise AI

    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 Open Weight License
Version1.0
SPDX identifierNot applicableNo SPDX identifier is recorded for these 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

Derived From

Ctxdex Foundation 3 Base

Distilled From

Ctxdex Chintana 1

Recommended replacement for

None recordedNo replacement recommendation is recorded in either direction.

Lifecycle history: Active on 2026-06-16.

Similar Industry Models

Captured as of

A 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.

DeepSeek V4.1-Flash

DeepSeek

Provider documentation
CloseComplex ReasoningAgenticEfficient Moe

Selected as a close current reference for Ctxdex Chintana 1 Large based on complex reasoning, agentic, efficient moe.

Checked 2026-09-14 · High confidence

Qwen3.5-397B-A17B

Alibaba Cloud

Provider documentation
CloseLarge Reasoning ClassOpen Model

Selected as a close current reference for Ctxdex Chintana 1 Large based on large reasoning class, open model.

Checked 2026-09-14 · Medium confidence

Mistral Small 4

Mistral AI

Provider documentation
ReferenceReasoning ModeOpen Weight

Selected as a reference current reference for Ctxdex Chintana 1 Large based on reasoning mode, open weight.

Checked 2026-09-14 · High confidence

Comparison method CTXDEX_COMPARABLES_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.