Comparison
GPUBox vs OpenAI
If you're already using the OpenAI SDK, the migration is one URL. Same client libraries, same JSON shapes, same streaming. Set base_url = "https://api.gpubox.ai/v1" and your existing code keeps working.
The honest tradeoff: GPUBox doesn't match OpenAI on frontier capability. Qwen2.5-32B is strong, but it's not o1 or GPT-4o. GPUBox wins on price, on UK data residency, and on transparency (one blended rate, audit log retained, no surprise model swaps). It loses on capability ceiling, on image generation, and on the breadth of tools OpenAI has shipped.
API surface
GPUBox
OpenAI-compatible /v1/chat/completions, /v1/audio/transcriptions, /v1/embeddings.
OpenAI
The reference implementation. Hundreds of endpoints across chat, audio, embeddings, images, fine-tuning, assistants, batch, files.
SDK migration cost
GPUBox
Change one URL: base_url = 'https://api.gpubox.ai/v1'. Every official OpenAI SDK works unmodified.
OpenAI
—
Hosting jurisdiction
GPUBox
United Kingdom. UK-incorporated company (Mobile Paradigm Consultancy Ltd). UK VAT.
OpenAI
United States primarily, with EU regions for Enterprise. Standard US-counterparty terms.
Frontier capability
GPUBox
Qwen2.5-32B-Instruct on chat. Strong, but not GPT-4o / o1 / GPT-5 class. Whisper-large-v3-turbo is the current SOTA on transcription.
OpenAI
GPT-4o, o1, o3, GPT-4.1, frontier reasoning. The capability ceiling. Image generation. Realtime API.
Pricing — chat
GPUBox
£1.00 per 1M tokens, blended (input + output same rate).
OpenAI
Tiered. GPT-4o: $2.50 input / $10 output per 1M. GPT-4.1: $2 / $8. o1: $15 / $60. Cheaper minis at $0.15-$0.60.
Pricing — audio (Whisper)
GPUBox
£0.005 per audio minute.
OpenAI
$0.006 per audio minute.
Currency
GPUBox
GBP. VAT-compliant invoicing for UK and EU B2B (reverse-charge supported).
OpenAI
USD. Tax handled per OpenAI's tax setup.
Streaming + tools
GPUBox
Streaming SSE, JSON mode, function calling — all OpenAI-compatible.
OpenAI
The reference implementation.
Image generation
GPUBox
Not offered.
OpenAI
DALL·E 3, gpt-image-1.
Fine-tuning
GPUBox
Not yet on the API. Roadmap (Factory product).
OpenAI
Available on GPT-4o, GPT-4o-mini, GPT-3.5. Per-token training + serving fees.
Data used to train future models
GPUBox
No. Inference data is never used to train any model. Default off, no opt-in offered.
OpenAI
Default off on API per their data usage policy. Configurable for ChatGPT.
Data residency commitment
GPUBox
Inference happens on UK-domiciled hardware operated by a UK company. Data does not leave UK jurisdiction.
OpenAI
EU residency available on Enterprise tier (zero data retention regions). Standard tier routes to US.
Audit log
GPUBox
Per-call audit log retained 30 days minimum.
OpenAI
Usage dashboard. Audit logs available on Enterprise tier.
Counterparty
GPUBox
UK Limited Company, UK VAT registered, signed UK-law DPA.
OpenAI
OpenAI, L.L.C. (Delaware) or OpenAI Ireland Ltd for EU.
Pick GPUBox if
- Your workload is well-served by Qwen2.5-32B (most chat, most RAG, most agents).
- UK data residency is a buyer requirement (banks, public sector, regulated).
- Per-million pricing is half (or less) of GPT-4o equivalents.
- You want a UK-counterparty signed DPA for procurement.
- GBP invoicing matters for accounts payable.
- You're transcribing audio at scale — £0.005 vs $0.006.
Pick OpenAI if
- You need GPT-4o, o1, o3, or frontier reasoning capability.
- You're generating images (DALL·E 3 / gpt-image-1).
- You need fine-tuning today, not next quarter.
- You depend on the Assistants API, Realtime API, or Batch API.
- Your customers / stakeholders specifically require OpenAI as the underlying.
Try the drop-in for yourself.
Email us for a same-day API key. First £20 of usage is on us.