InstructGPT
OpenAI's 2022 model that introduced RLHF instruction-tuning at scale
Paid
Language
2048
context tokens
175B
parameters
Proprietary
license
Jan 2022
released
// about InstructGPT
OpenAI's 2022 model that introduced RLHF instruction-tuning at scale
// similar models in Language
Claude Sonnet 5
The first Sonnet-class Claude model to top Anthropic's flagship writing benchmarks
Anthropic · Language · Paid
DeepSeek V3
DeepSeek's efficient mixture-of-experts model trained at a fraction of rival costs
DeepSeek · Language · Free
Qwen3-235B-A22B
Alibaba's flagship open-weight mixture-of-experts model, the cheapest capable frontier model
Alibaba · Language · Free
Claude 3.5 Sonnet
The 2024 Claude release that popularized computer-use agent capabilities
Anthropic · Language · Paid
Claude Haiku 4.5
Anthropic's fastest and cheapest current-generation model
Anthropic · Language · Paid
Command R Plus
Cohere's flagship RAG- and tool-use-optimized model above Command R
Cohere · Language · Free