GPT-5.4 Pro vs Reflection: Beam 1.0 501B A23B
openai/gpt-5.4-pro · reflection/beam-1.0-501b-a23b
As of November 1, 2026, Reflection: Beam 1.0 501B A23B is the cheaper API on UberLLM: $0.0750 per million input tokens and $0.3000 per million output, versus $4.11 / $24.64 for GPT-5.4 Pro, about 99% less when output is 3 tokens for every input token. These are the best prices on the market right now. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Reflection: Beam 1.0 501B A23B to cut cost; choose GPT-5.4 Pro when its capabilities fit your task better.
GPT-5.4 Pro vs Reflection: Beam 1.0 501B A23B, side by side
| Spec | GPT-5.4 Pro | Reflection: Beam 1.0 501B A23B |
|---|---|---|
| Price · input / 1M | $4.11 | $0.0750 |
| Price · output / 1M | $24.64 | $0.3000 |
| Context length | 1,000,000 | 1,048,576 |
| Max output tokens | 128,000 | 943,718 |
| Input modalities | text, image | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | — |
| Reasoning | Yes | Yes |
| % off list | 86.3% off | 70% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 1, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
GPT-5.4 Pro vs Reflection: Beam 1.0 501B A23B — FAQ
Is GPT-5.4 Pro or Reflection: Beam 1.0 501B A23B cheaper?
Reflection: Beam 1.0 501B A23B is cheaper on a blended token mix, by about 99%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between GPT-5.4 Pro and Reflection: Beam 1.0 501B A23B?
GPT-5.4 Pro: $4.11 in / $24.64 out per 1M tokens. Reflection: Beam 1.0 501B A23B: $0.0750 in / $0.3000 out per 1M tokens. That's roughly a 99% blended difference. Prices are live; UberLLM adds no fee.
Can I use both GPT-5.4 Pro and Reflection: Beam 1.0 501B A23B with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.