Cutoff Data
Model speed & uptime index
How fast each major model answers, and how often it fails, measured hourly from an independent client over the last 7 days.
Last reading 9/24/2026, 1:17:04 AM UTC
Failing right now: GPT-5 Nano, GPT-5 Mini, GPT-5.4 Mini, GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna, Gemini 2.5 Pro, Gemini 2.5 Flash Lite, Gemini 2.5 Flash, Gemini 3.1 Pro (preview), Gemini 3.1 Flash Lite, Gemini 3.5 Flash, Gemini 3.6 Flash
| Model | Provider | Median | 95th pct | Uptime | Probes | Now |
|---|---|---|---|---|---|---|
| GPT-5 Nanoopenai/gpt-5-nano | OpenAI | — | — | 0% | 77 | Failing |
| GPT-5 Miniopenai/gpt-5-mini | OpenAI | — | — | 0% | 77 | Failing |
| GPT-5.4 Miniopenai/gpt-5.4-mini | OpenAI | — | — | 0% | 77 | Failing |
| GPT-5.6 Solopenai/gpt-5.6-sol | OpenAI | — | — | 0% | 77 | Failing |
| GPT-5.6 Terraopenai/gpt-5.6-terra | OpenAI | — | — | 0% | 77 | Failing |
| GPT-5.6 Lunaopenai/gpt-5.6-luna | OpenAI | — | — | 0% | 77 | Failing |
| Gemini 2.5 Progoogle/gemini-2.5-pro | — | — | 0% | 77 | Failing | |
| Gemini 2.5 Flash Litegoogle/gemini-2.5-flash-lite | — | — | 0% | 77 | Failing | |
| Gemini 2.5 Flashgoogle/gemini-2.5-flash | — | — | 0% | 77 | Failing | |
| Gemini 3.1 Pro (preview)google/gemini-3.1-pro-preview | — | — | 0% | 77 | Failing | |
| Gemini 3.1 Flash Litegoogle/gemini-3.1-flash-lite | — | — | 0% | 77 | Failing | |
| Gemini 3.5 Flashgoogle/gemini-3.5-flash | — | — | 0% | 77 | Failing | |
| Gemini 3.6 Flashgoogle/gemini-3.6-flash | — | — | 0% | 76 | Failing |
How this is measured
Once an hour we send every tracked model the same short, deterministic prompt and record wall-clock time from request to completed response, plus whether the call succeeded.
Median and 95th-percentile figures are computed across all successful probes in the trailing 7-day window. Uptime is successful probes divided by total probes.
These are single-client measurements over one network route, at short prompt lengths. They are a fair basis for comparing models against each other under identical conditions, not a substitute for a provider’s own status page.