GPT-5.3 Chat delivers smoother conversations with better accuracy and fewer unnecessary refusals.
PassingRight routes requests to the best providers that are able to handle your prompt size and parameters.
GPT-5.3 Chat delivers smoother conversations with better accuracy and fewer unnecessary refusals. You can access it through PassingRight's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
Pricing for GPT-5.3 Chat on PassingRight starts at $1.75 per million input tokens and $14.00 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
GPT-5.3 Chat supports a context window of up to 128,000 tokens on its largest provider deployment.
GPT-5.3 Chat is served by OpenAI, Azure through PassingRight. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
GPT-5.3 Chat supports tool (function) calling, but not JSON output modes.
GPT-5.3 Chat was released on March 3, 2026.
GPT-6 Luna
Up to 10% off1,050,000 context$0.09 in / $0.45 out per 1M
GPT-6 Sol
Up to 10% off1,050,000 context$1.80 in / $9.00 out per 1M
GPT Image 2.5 Sunburst
Up to 10% off$4.50 in / $0.00 out per 1M
GPT Image 2.5 Flare
Up to 10% off$4.50 in / $0.00 out per 1M
GPT-6 Astra
Up to 10% off1,050,000 context$9.00 in / $45.00 out per 1M
GPT Live Transcribe
Up to 10% off$0.00 in / $0.00 out per 1M