OpenAI Releases GPT-5.5 with Enhanced Agentic Capabilities
Original: GPT-5.5
Why This Matters
Marks major leap toward autonomous AI agents capable of complex workflows
OpenAI announced GPT-5.5 on April 23, 2026, featuring improved reasoning across context and autonomous task completion. The model excels at coding, research, data analysis, and computer operation while matching GPT-5.4's speed but using fewer tokens for equivalent tasks.
GPT-5.5 represents a significant advancement in AI capabilities, designed for complex, multi-part tasks requiring minimal user oversight. The model demonstrates particular strength in agentic coding, computer use, knowledge work, and scientific research. Performance benchmarks show GPT-5.5 achieving 82.7% on Terminal-Bench 2.0 versus GPT-5.4's 75.1%, and 73.1% on Expert-SWE compared to 68.5%. The model maintains GPT-5.4's per-token latency while delivering higher intelligence levels. OpenAI conducted extensive safety evaluations with nearly 200 trusted partners before release. GPT-5.5 is now available to Plus, Pro, Business, and Enterprise users in ChatGPT and Codex, with API access coming soon pending additional safety requirements.