OpenAIがAWS Bedrockに上陸 — ChatGPTの独占は終わるのか
OpenAIのgpt-5.5とgpt-5.4がAWS Bedrockで利用可能になり、企業顧客はOpenAIと直接契約せずに最先端モデルへアクセスできるようになった。
openai has launched gpt-5.5, gpt-5.4, and codex on amazon web services, hosted on the new bedrock inference engine in us commercial and govcloud regions. aws confirms pricing is identical to openai's first-party rates with no markup, and usage integrates seamlessly into existing aws contracts for simplified billing. the move leverages aws security capabilities like iam and vpc isolation, allowing highly regulated sectors to adopt generative ai more easily. this distribution deal signals a major shift in go-to-market strategies, opening frontier model access to the massive aws ecosystem.