82 reviews
We wanted our users to bring the AI they already pay for, so supporting OpenAI was essential. Its models are fast and reliable for everyday work like summarising conversations, drafting replies, and turning meetings into tasks, and the developer tools made it straightforward to build on. Many of our users already rely on it, and letting them keep that choice inside Velozity removes a reason not to switch.
Great powerful models!
We code with this and all the other comps
Great for AI research, better pricing and capabilities
The GPT 5.6 terra model is the best for debugging verbose coding languages, and codex by far has the best harness with a sleek GUI , and having good harness engineering can make RAG workflows increase context efficiency
I build this product while joining OpenAI Hackathon. Thanks for the free credit!
GPT 5.6 capabilities were extremely good and provided with the best output that matched my expectations.
GPT-4.1 and GPT-4o run inside Manta — powering the agent’s decision-making and visual understanding as it explores your application. The combination of text and vision capabilities was exactly what autonomous testing required.
The context window is limited. After a certain number of messages, earlier parts of the conversation may be dropped, and the system may prompt an upgrade when usage gets heavy or model limits are reached.DeepSeek (free tier, in many setups):Often feels more generous with longer context retention in casual use, so conversations may feel less “cut off” during extended chats.
GPT-5 is the engine behind every AI feature in Cloud World Model - bottleneck analysis, autoscaling explanations, architecture optimization suggestions, and beginner mode (which rewrites technical output into plain English). The quality of reasoning matters here: users trust these explanations to make real infrastructure decisions. GPT-5 consistently gives specific, actionable answers rather than generic advice, and the structured output reliability made it straightforward to integrate into a simulation pipeline where the AI response has to parse cleanly every time.
OpenAI is always pushing the limits and releasing amazing models. Just one reason we can never go full Claude with Adapt, and why we always route tasks to the best model for the job.
OpenAI and its startup program has consistently a great partner for us as we continue to expand Charlie's offering.
