KeyCDN vs Fastly
Four of fourteen models named KeyCDN first on the direct prompt; zero named Fastly. KeyCDN was named by twelve of the fourteen models and Fastly by fourteen and KeyCDN carries 25 labels and Fastly 61, so the shares are not directly comparable.
Named in one category this edition.
Named in four categories this edition.
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the content delivery networks page.
By framing
KeyCDNFirst choices, of fourteen modelsFastly
Across every category in the October 2026 Edition, KeyCDN and Fastly were named in the same answer forty times, of the 65 answers naming KeyCDN and the 175 naming Fastly. In those answers Fastly took the first choice zero times and KeyCDN one.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | |||
| GPT-5.4 mini | | | | | ||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | | ||
| Grok 4.1 Fast | | | | | | |
| Mistral Small | | | | |||
| DeepSeek V4 Flash | | | | | ||
| Llama 4 Maverick | | | ||||
| Qwen 3.7 Flash | | | | | ||
| Kimi K2 | | | | | | |
| GLM 4.7 FlashX | | | | | | |
| MiniMax M2.5 | | | | | ||
| GPT-6 Luna | | | | |||
| Muse Glimmer 30B | | | | | |
KeyCDN Fastly first choice named as an alternative argued againstblank: not namedEach cell is one answer, KeyCDN on the left and Fastly on the right.The direct prompt
KeyCDN first, Fastly not the choice
4 of 14 modelsFastly was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
7 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
3 of 14 modelsThe answer made no first choice from these two in this category.Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
Fastly6%#4 of 8KeyCDN0%#– of 8What the models said about KeyCDN
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“KeyCDN has a smaller network and less global coverage compared to larger CDN providers” Claude Haiku 4.5 · negative prompt · soft negative
“No-SLA/consumer tiers (Bunny.net, KeyCDN): Avoid for critical/production systems” Grok 4.1 Fast · negative prompt · soft negative
“small providers — While some are decent, small CDNs often lack” DeepSeek V4 Flash · negative prompt · soft negative
“KeyCDN is another popular choice, offering transparent pricing ... a good fit for mid-market B2B organizations” Mistral Small · direct prompt · first choice
“The best CDN for a mid-market B2B company is Bunny.net, KeyCDN, or BlazingCDN.” Llama 4 Maverick · direct prompt · first choice
“I'd suggest starting with Bunny.net or KeyCDN for cost-effectiveness” MiniMax M2.5 · direct prompt · first choice
What the models said about Fastly
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Avoid enterprise ones (Akamai, Fastly) as they're pricier.” Grok 4.1 Fast · budget prompt · hard negative
“Fastly’s VCL‑based cache logic is powerful but can be brittle; mis‑configuration can lead to cache‑invalidation issues or performance regressions.” GLM 4.7 FlashX · negative prompt · soft negative
“good option for development-heavy teams ... but it is more specialized than Cloudflare for a broad mid-market B2B use case” Perplexity Sonar · direct prompt · soft negative
“Fastly: *The "Developer-First" Choice.* Best-in-class real-time purging ... Ideal if your engineering team wants complete programmatic control.” Gemini 3.5 Flash · scale prompt · first choice
“I'd recommend evaluating Cloudflare, Fastly, Akamai, and CloudFront first” GLM 4.7 FlashX · scale prompt · first choice
“Fastly if your site or app needs very fast purging, high configurability, real-time control, or developer-heavy workflows” GPT-5.4 mini · paraphrase prompt · alternative
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.