Mar 3, 2026GoogleFlagship
Gemini 3.1 Pro
Latest Gemini flagship family.
Gemini 3
Series
AI Model Release Timeline
Track major AI model launches and filter them by provider, release type, and family.
Reference data snapshot: 2026-05-29
These figures are reference estimates from the tool data set. For live model pricing, use the main Crazyrouter pricing page before making production decisions.
Migrated local data from D:\crazyrouter-tools and image-nextjs planning records
Release timeline
Browse major model launches by date, provider, and model family.
2026
2025
Oct 29, 2025AnthropicFlagship
Claude Sonnet 4.5
Major Sonnet upgrade.
Claude 4.5
Series
Jun 20, 2025xAIReasoning
Grok 4
xAI's reasoning model.
Grok
Series
Jun 10, 2025OpenAIFlagship
GPT-5
Unified model generation with stronger reasoning.
GPT
Series
Apr 29, 2025QwenOpen
Qwen3
Thinking and non-thinking modes.
Qwen
Series
Apr 14, 2025OpenAIFlagship
GPT-4.1
Improved coding and instruction following.
GPT
Series
Mar 4, 2025GoogleReasoning
Gemini 2.5 Pro
Thinking model with strong benchmark performance.
Gemini
Series
Feb 24, 2025AnthropicReasoning
Claude 3.7 Sonnet
Hybrid reasoning with extended thinking.
Claude 3.7
Series
Jan 20, 2025DeepSeekReasoning
DeepSeek-R1
Open reasoning model.
DeepSeek-R
Series
2024
Dec 26, 2024DeepSeekFlagship
DeepSeek-V3
MoE model with strong open performance.
DeepSeek
Series
Sep 12, 2024OpenAIReasoning
o1-preview
First reasoning model with inference-time thinking.
o-series
Series
Jun 20, 2024AnthropicFlagship
Claude 3.5 Sonnet
Strong performance at lower cost.
Claude 3.5
Series
May 13, 2024OpenAIFlagship
GPT-4o
Omni model. Native multimodal, faster and cheaper.
GPT
Series
Apr 18, 2024MetaOpen
Llama 3
State-of-the-art open model generation.
Llama
Series
Mar 4, 2024AnthropicFlagship
Claude 3 Opus
Most capable Claude 3 model at launch.
Claude 3
Series
Feb 15, 2024GoogleFlagship
Gemini 1.5 Pro
1M token context window breakthrough.
Gemini
Series
2023
Dec 6, 2023GoogleFlagship
Gemini 1.0
Google's multimodal flagship family.
Gemini
Series
Mar 14, 2023OpenAIFlagship
GPT-4
Multimodal model. Major leap in reasoning.
GPT
Series
Mar 14, 2023AnthropicFlagship
Claude 1
Anthropic's first public model.
Claude
Series
Feb 24, 2023MetaOpen
LLaMA
Meta's first open-source LLM family.
Llama
Series
2022
Nov 30, 2022OpenAIFlagship
ChatGPT (3.5)
Fine-tuned GPT-3.5. Launched ChatGPT to the public.
GPT
Series
2020
Jun 11, 2020OpenAIFlagship
GPT-3
175B params. The model that started the LLM era.
GPT
Series