Signifyd vs Sift
Four of fourteen models named Signifyd first on the direct prompt; two named Sift. Both were named by all fourteen models and Signifyd carries 43 labels and Sift 44, so the shares are not directly comparable.
Named in two categories this edition.
Named in three 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 ecommerce fraud prevention page.
By framing
SignifydFirst choices, of fourteen modelsSift
Across every category in the October 2026 Edition, Signifyd and Sift were named in the same answer 117 times, of the 198 answers naming Signifyd and the 161 naming Sift. In those answers Sift took the first choice nine times and Signifyd twenty-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 | | | |
Signifyd Sift first choice named as an alternative argued againstblank: not namedEach cell is one answer, Signifyd on the left and Sift on the right.The direct prompt
Signifyd first, Sift an alternative
4 of 14 modelsSift was named in the answer but not as the choice, or not at all.Sift first, Signifyd an alternative
2 of 14 modelsSignifyd was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
5 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
What the models said about Signifyd
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.
“Signifyd's public terms define eligible chargebacks narrowly... That's a reason to get the exact coverage schedule and exclusions in the signed agreement—not, by itself, a reason to avoid Signifyd.” GPT-6 Luna · negative prompt · soft negative
“Choose Signifyd or Riskified if: You want to outsource fraud completely... Go with Signifyd if you are mid-market and want seamless e-commerce platform plug-ins.” Gemini 3.5 Flash · comparative prompt · first choice
“The original "chargeback guarantee" pioneer ... Best fit: High-volume merchants ($10M+ GMV) who want fraud completely off their plate.” Kimi K2 · comparative prompt · first choice
“The Best Overall (Especially for Open Credit): Signifyd ... widely considered the gold standard for B2B commerce” Qwen 3.7 Flash · direct prompt · first choice
What the models said about Sift
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Can be complex to configure; occasional false positives requiring manual review. Not ideal for very small teams due to setup overhead.” Grok 4.1 Fast · negative prompt · soft negative
“Unlike consumer-focused tools (like Sift or Stripe Radar), these are specifically designed for B2B payment workflows” Kimi K2 · paraphrase prompt · soft negative
“Some users note that the system can occasionally generate false positives, which may require additional review time.” Claude Haiku 4.5 · negative prompt · soft negative
“Start with Sift for most mid-market B2B ecommerce—it's consistently #1 in G2 rankings for balanced performance without overkill.” Grok 4.1 Fast · direct prompt · first choice
“Sift maintains #1 position across all fraud prevention categories in G2's Fall 2025 Reports” Muse Glimmer 30B · comparative prompt · first choice
“Sift - Top-rated on G2 for real-time detection.” Grok 4.1 Fast · comparative prompt · first choice
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.