OpenAI18:20AvailabilityOfficial Blog
OpenAI Releases GPT-5.5 to API for Developers
Accelerates complex coding/analysis with fewer tokens, cutting dev costs.
Key Points
- 1Higher intelligence, 2x token efficiency
- 2Available now in API after ChatGPT/Codex
- 3Ideal for agents, code, research
- 4$5 input/$30 output per 1M tokens
OpenAI made GPT-5.5 and GPT-5.5 Pro available in the API. It excels in complex work with higher intelligence and token efficiency, reducing retries for coding, research, and agents. Pricing: $5/1M input, $30/1M output tokens.