Release timeline

AI models released in 2023

6 large language models from 3 providers shipped in 2023 and are available on PassingRight. See each provider release date and when it was added to the gateway.

6
models
2
flagship
latest

November 2023

Claude 2.1

Anthropic · claude-2.1

Claude 2.1 was released by Anthropic on and added to PassingRight on .

Pricing, providers & uptime

TTS-1 HD

OpenAI · tts-1-hd

TTS-1 HD was released by OpenAI on and added to PassingRight on .

Pricing, providers & uptime

TTS-1

OpenAI · tts-1

TTS-1 was released by OpenAI on and added to PassingRight on .

Pricing, providers & uptime

GPT-4 Turbo

Flagship

OpenAI · gpt-4-turbo

GPT-4 Turbo was released by OpenAI on and added to PassingRight on .

Pricing, providers & uptime

August 2023

Eleven Multilingual v2

ElevenLabs · eleven-multilingual-v2

Eleven Multilingual v2 was released by ElevenLabs on and added to PassingRight on .

Pricing, providers & uptime

March 2023

GPT-4

Flagship

OpenAI · gpt-4

GPT-4 was released by OpenAI on and added to PassingRight on .

Pricing, providers & uptime
2022 releases2024 releases

FAQ

2023 LLM releases, answered

How many LLMs were released in 2023?
6 models from 3 providers were released in 2023 and are available on PassingRight, including GPT-4 Turbo, GPT-4.
What major AI models came out in 2023?
Notable 2023 releases include GPT-4 Turbo, GPT-4. Each links to a detail page with pricing, context window, and capabilities.
What was the newest model released in 2023?
The most recent 2023 release tracked here is Claude 2.1 from Anthropic, released on November 21, 2023.
How soon after release are models added to PassingRight?
New models are typically available on PassingRight within 48 hours of their official provider release, so you can switch to them without changing your integration.

Use any 2023 model with one API

Route to every model on this list through a single OpenAI-compatible API — no new SDK, no vendor lock-in.

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