Research report 09 / Developer cadence

Model Release Velocity

Release frequency, developer share, model availability, and cadence from verified model launches.

Archived snapshotv4Aug 27, 2026
Verified releases
33

33 total model launches

Developers
23

Named release organizations

Most active
OpenAI

6 releases

Open share
33%

Disclosed open availability/license

Interactive figureRelease velocity
CSV JSON
Data status33 verified records across 7 periods

Each bar is one month. Colored segments show how verified observations are distributed across series.

Verified observationHover or focus any mark for exact valuesLast updated Aug 27, 2026

Version ledger

Frozen public editions

Each edition preserves the records, method, sources, and downloads available at publication time.

  1. v4 / latestAug 27, 202633 records / 40 sources

    Source-backed fields changed; the frozen snapshot contains 33 records.

  2. v3Aug 27, 202633 records / 40 sources

    Source-backed fields changed; the frozen snapshot contains 33 records.

  3. v2Aug 27, 202633 records / 40 sources

    Source-backed fields changed; the frozen snapshot contains 33 records.

  4. v1Aug 27, 202633 records / 40 sources

    Initial public snapshot with 33 records and 40 cited sources.

Coverage note

Release counts reflect the monitored source set and verified records, not every model published globally.

Dataset ID
spd:release-velocity
Stable URL
/research/release-velocity
Version
v4
Coverage
2024-10/2026-08-26
Records
33
Fields
6
Updated

Read the data

The records behind the figure

CSV JSON
Model Release Velocity data records
DateModelDeveloperRelease typeAvailabilityLicense
2024-10-07Inflection 3.0Inflection AIcommercial API and enterprise AI systemCommercial API available to developers; enterprise deployment on-premises, in the cloud, or hybrid
2025-08-22GPT-4b microOpenAIexperimental researchdeveloped for research purposes; not broadly available
2025-12-11GPT-5.2OpenAIAPI and ChatGPT (model variants: GPT-5.2 Instant, GPT-5.2 Thinking, GPT-5.2 Pro)In ChatGPT: GPT-5.2 Instant, Thinking, and Pro begin rolling out today to paid plans; In the API: available now to all developers.
2025-12-16GPT Image 1.5OpenAIAPI and ChatGPT rolloutModel rolling out in ChatGPT for all users and available in the API as GPT Image 1.5; the new Images experience is rolling out to most ChatGPT users, with Business and Enterprise access coming later; global.
2026-04-07Claude Mythos PreviewAnthropicPreviewrestricted access (restricted-access rollout)
2026-04-28Laguna XS.2Poolsideopen weightsPreview; Hugging Face, Poolside API, and OpenRouterApache 2.0
2026-06-09Claude Fable 5AnthropicPublic release (Mythos-class); available via API and EnterprisePublicly accessible via API and Enterprise; included in subscription plans through 2026-06-22 after which access requires purchase of usage credits; some sensitive-topic access restricted and Mythos 5 limited to vetted Project Glasswing participants
2026-06-30Claude Sonnet 5Anthropicgeneral availability and APIAll Claude plans and Claude API
2026-07-02Laguna XS 2.1Poolsideopen weightsPoolside API, OpenRouter, Hugging Face weights, and local deploymentOpenMDW-1.1
2026-07-08GPT-LiveOpenAIvoice model (full-duplex)Rolling out to ChatGPT users globally (ChatGPT Voice); API availability planned/coming soon. (Update 2026-07-31: SynthID watermarking and API verification access added for supported audio.)
2026-07-09GPT-5.6 (Sol, Terra, Luna)OpenAIgeneral availabilityGeneral availability following a limited preview
2026-07-16Kimi K3Moonshotopen-weights release (weights published for public download)Weights published for anyone to download; model can be run locally on user hardwareLicense requires companies operating a model-as-a-service business with > $20M total annual revenue (over 12 months) to enter a separate agreement with Moonshot before commercial use.
2026-07-24Claude Opus 5Anthropicgeneral availabilityAvailable immediately; default on Claude Max and strongest model on Claude Pro
2026-07-31MiniMax H3MiniMaxAPI and open weightsHosted API globally; downloadable weights restricted to the license's applicable territoriesMiniMax H3 Community License Agreement
2026-08-10Muse GlimmerMetaopen weightsConsumer hardware with 24 GB or 32 GB of memoryApache 2.0
2026-08-11Nemotron 3.5 LightningNvidiaopen weights (public release)Available through Nvidia and model repositories including Hugging Face and ModelScope; NeMo Switchyard available on GitHubOpenMDW-1.1
2026-08-12Qwen3.8-27B-CRACK-GGUFJinho Jang (dealign.ai)Open weights; GGUF quantizations packaged for local inference via llama.cppHugging Face repository; downloadable GGUF files and a 0.9 GB vision projector for local use
2026-08-16GLM-5.3Zhipu (Z.ai)
2026-08-18GPT-5.6 SolOpenAIAPILimited release to a small group of customers; wider access planned later
2026-08-19Ornith-1.5Ornith AIopen weightsHugging Face collection; local deployment and quantized mobile version described
2026-08-21deepseek-v4-flash-vision-expDeepSeekexperimental API modelAvailable through Chat Completions, Messages, and Responses requests
2026-08-21Falcon 2Murf AIproprietary foundation voice model
2026-08-21V4-Flash-Vision-ExpDeepSeekexperimental API modelDeepSeek API
2026-08-24GEN-1.5Generalist AIresearch releaseAvailable through direct partnerships on Generalist AI's own robot fleet; no public weights, API, or self-serve product
2026-08-24ThomsonThomson Reutersenterprise launch; open-weight version plannedInitially available in CoCounsel Legal’s Tabular Analysis feature; smaller version planned for Hugging FaceNon-commercial license for the planned smaller open-weight version
2026-08-24HiDream-O1-WorldHiDream.aimodel launch
2026-08-26Qwen3.8-Flash-NextAlibaba Qwen teamarchitecture preview; open weights; production APIWeights on Hugging Face and ModelScope; production Qwen3.8-Flash through QwenCloud; API expected shortly
2026-08-26Gemini 3.5 TranscribeGoogleAPI and product availabilityAvailable in Gboard Rambler on Pixel 11, Gemini for macOS, Antigravity, AI Studio's build model, and the Gemini API; Chrome and more devices planned
2026-08-26Qwen3.8-FlashAlibabaAPIAPI access
2026-08-26Qwen3.8-FlashAlibaba QwenAPIQwenCloud managed API
2026-08-26GLM-5.3-FlashZ.aiopen weights and hosted APIWeights available on Hugging Face; hosted API live; available across GLM Coding Plan tiersMIT
2026-08-26Granite 4.2IBMopen weightsHugging Face, Ollama, GitHub, and other platformsApache 2.0
2026-08-26Grok 4.6xAIpublic previewMicrosoft Foundry for Azure customers

Measurement technique

How to read this report

  1. 01Each verified model-launch record contributes one release observation.
  2. 02Developer names are normalized during extraction; series preserve currently disclosed attribution.
  3. 03Release volume measures activity, not capability or adoption.

Sources

Evidence

26 publishers supporting 40 records. Expand a publisher to inspect its cited pages.

openai.comopenai.com5 sources / 5 records
Ars Technicaarstechnica.com3 sources / 3 records
campustechnology.comcampustechnology.com3 sources / 3 records
marktechpost.commarktechpost.com3 sources / 3 records
the-decoder.comthe-decoder.com3 sources / 3 records
siliconangle.comsiliconangle.com2 sources / 2 records
Show 20 more publishers
x.aix.ai2 sources / 2 records
anthropic.comanthropic.com1 source / 1 record
artificialintelligencemadesimple.comartificialintelligencemadesimple.com1 source / 1 record
autoclaw.z.aiautoclaw.z.ai1 source / 1 record
blog.googleblog.google1 source / 1 record
CNBCcnbc.com1 source / 1 record
cryptobriefing.comcryptobriefing.com1 source / 1 record
deccanherald.comdeccanherald.com1 source / 1 record
economictimes.comeconomictimes.com1 source / 1 record
finance.yahoo.comfinance.yahoo.com1 source / 1 record
invezz.cominvezz.com1 source / 1 record
justsecurity.orgjustsecurity.org1 source / 1 record
readthepeak.comreadthepeak.com1 source / 1 record
semafor.comsemafor.com1 source / 1 record
stocktitan.netstocktitan.net1 source / 1 record
TechCrunchtechcrunch.com1 source / 1 record
technologyreview.comtechnologyreview.com1 source / 1 record
thelogic.cothelogic.co1 source / 1 record
vir.com.vnvir.com.vn1 source / 1 record
yahoo.comyahoo.com1 source / 1 record
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