OpenAI API Statistics 2026: Traffic, Revenue & Rankings

OpenAI API is a developer platform for calling OpenAI models through HTTP endpoints and official SDKs. Developers use it to generate and analyze text, images, audio, and other outputs inside their applications using an API key. It supports streaming responses and tool enabled agent workflows for software builders.

OpenAI API usage statistics

• Overall AI rank: #130 of 1210 tools
• API rank: #12 of 34
• Cisco Umbrella rank: 2,352
• Tranco rank: 28,444
• 30-day traffic growth: +135.6%
• Share of AI web traffic: 0.09%
• Revenue: ~$70B ARR (Sep 2026, Axios sources)
• Valuation: $852B post-money valuation (Mar 31, 2026, OpenAI)
• Pricing: Usage-based (pay-as-you-go); API prices per 1M tokens vary by model (no fixed monthly fee)

Rankings use the independent Tranco domain-popularity list, with Cisco Umbrella as a fallback for domains not listed by Tranco. Updated daily.

Top API alternatives

• Anthropic, ranked #3 overall
• Hugging Face, ranked #8 overall
• xAI, ranked #31 overall
• Deepmind (Google), ranked #46 overall
• Mistral, ranked #47 overall
• tensorflow, ranked #61 overall

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