GPT-4

GPT-4 was released March 14, 2023 as OpenAI's most capable model. It demonstrated human-level performance on various professional and academic benchmarks, scoring 86.4% on MMLU and in the 90th percentile on the bar exam. Initially text-only with an 8K context window (32K variant available). Priced at \$30/\$60 per million tokens.