AI models · release dates

New AI models by release date

Latest releases in October 2026: Gemini 4 Argon from Google on 13 October, Claude Haiku 5.5 from Anthropic on 7 October and Mistral Large 4 from Mistral on 6 October. Below, every model on our price list by release date, newest first, with its list price: each major lab’s main models, not every model shipped.

Dates and prices from each maker’s own pages, read on 15 October 2026. RSS feed

Released in 2026
35the newest, Gemini 4 Argon from Google, on 13 Oct 2026
With a release date
39
In October 2026
3
Open weights, 2026
11
No published date
7

Counted on the 46 models of our price list.

39 of the 46 models on our price list have a release date from their maker. The newest, Gemini 4 Argon from Google, came out on 13 Oct 2026. 35 of them were released in 2026, 11 with open weights. Every price is the list price read on the maker’s own page on 15 October 2026.

October 2026

3 releases on the list.

Released in October 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Gemini 4 ArgonGoogle13 Oct 2026$2.00$10.001.05M$10.00
Claude Haiku 5.5Anthropic7 Oct 2026$0.10$0.501M$0.50
Mistral Large 4Mistral6 Oct 2026$1.36$4.181M$5.75

September 2026

10 releases on the list.

Released in September 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
GPT-6.1 SolOpenAI29 Sep 2026$2.00$10.001.05M$10.00
Claude Sonnet 5.5Anthropic28 Sep 2026$2.00$10.001M$10.00
Claude Opus 5.5Anthropic22 Sep 2026$4.00$20.001M$20.00
GPT-6 SolOpenAINewer model: GPT-6.1 Sol22 Sep 2026$2.00$10.001.05M$10.00
GPT-6 LunaOpenAI22 Sep 2026$0.10$0.501.05M$0.50
DeepSeek V4.1 FlashDeepSeek · open weights10 Sep 2026$0.30$1.201M$1.38
GPT-6 AstraOpenAI3 Sep 2026$10.00$50.001.05M$50.00
Gemini 3.8 FlashGoogle2 Sep 2026$0.75$3.751.05M$3.75
Claude Fable 5.1Anthropic1 Sep 2026$10.00$50.001M$50.00
Grok 4.7xAISep 2026$2.00$6.00500K$8.40

August 2026

4 releases on the list.

Released in August 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
GLM-5.3-FlashZ.ai · open weights26 Aug 2026$0.15$0.501M$0.65
GLM-5.3Z.ai · open weights18 Aug 2026$1.40$4.401M$5.96
DeepSeek V4 ProDeepSeek · open weights13 Aug 2026$1.32$3.961M$5.54
Muse Glimmer 30BMeta · open weights12 Aug 2026No list price·128K·

July 2026

6 releases on the list.

Released in July 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Claude Opus 5AnthropicNewer model: Claude Opus 5.524 Jul 2026$5.00$25.001M$25.00
Gemini 3.5 Flash-LiteGoogle21 Jul 2026$0.30$2.501.05M$1.90
GPT-5.6 SolOpenAINewer model: GPT-6.1 Sol9 Jul 2026$4.00$20.001.05M$20.00
GPT-5.6 TerraOpenAINewer model: GPT-6.1 Sol9 Jul 2026$2.00$12.001.05M$10.80
GPT-5.6 LunaOpenAINewer model: GPT-6 Luna9 Jul 2026$0.20$1.201.05M$1.08
Kimi K3Moonshot AI · open weightsJul 2026$3.00$15.001.05M$15.00

June 2026

2 releases on the list.

Released in June 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Claude Sonnet 5AnthropicNewer model: Claude Sonnet 5.530 Jun 2026$2.00$10.001M$10.00
MiniMax M3MiniMax · open weights1 Jun 2026$0.30$1.201M$1.38

May 2026

One release on the list.

Released in May 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Gemini 3.1 Flash-LiteGoogle7 May 2026$0.25$1.501.05M$1.35

April 2026

4 releases on the list.

Released in April 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Mistral Medium 3.5Mistral · open weights28 Apr 2026$1.50$7.50256K$7.50
GPT-5.5OpenAINewer model: GPT-6 Astra24 Apr 2026$5.00$30.001.05M$27.00
Gemma 4 31BGoogle · open weights2 Apr 2026No list price·256K·
Kimi K2.6Moonshot AI · open weightsApr 2026$0.95$4.00262K$4.45

March 2026

3 releases on the list.

Released in March 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
GPT-5.4 miniOpenAI17 Mar 2026$0.75$4.50400K$4.05
GPT-5.4 nanoOpenAINewer model: GPT-6 Luna17 Mar 2026$0.20$1.25400K$1.10
Mistral Small 4Mistral · open weights16 Mar 2026$0.15$0.60256K$0.69

February 2026

2 releases on the list.

Released in February 2026: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Gemini 3.1 Pro (preview)GoogleNewer model: Gemini 4 Argon19 Feb 2026$2.00$12.001.05M$10.80
Claude Sonnet 4.6AnthropicNewer model: Claude Sonnet 5.517 Feb 2026$3.00$15.001M$15.00

December 2025

One release on the list.

Released in December 2025: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Ministral 3 14BMistral · open weights2 Dec 2025$0.20$0.20256K$0.68

October 2025

One release on the list.

Released in October 2025: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Claude Haiku 4.5AnthropicNewer model: Claude Haiku 5.515 Oct 2025$1.00$5.00200K$5.00

August 2025

One release on the list.

Released in August 2025: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
gpt-oss-120bOpenAI · open weights5 Aug 2025No list price·131K·

April 2025

One release on the list.

Released in April 2025: list prices per million tokens
ModelReleasedInputOutputContext1,000 replies
Llama 4 MaverickMeta · open weights5 Apr 2025No list price·1M·

No published date

Their makers give no release date on the pages we read, so they are left off the timeline rather than placed by guesswork.

Where the dates come from

Each date is the one on the maker’s own model page and each price the one on its pricing page, both read on 15 October 2026. These are the pricing pages.

Read on 15 October 2026. Each price is the standard rate for the shortest context band, with no batch or priority discount; long-context surcharges, batch rates and promotions are in each model’s small print. No price was taken from a reseller.

What each of them costs to run

The price list works three everyday jobs on every model, a support reply, a document summary and an agent task, and puts the pairs people compare side by side.

Prices checked 15 October 2026