NoSQL databases · November 2026 Edition
Amazon DynamoDB vs Apache Cassandra
Two of fourteen models named Amazon DynamoDB first on the direct prompt; zero named Apache Cassandra. Both were named by all fourteen models and Amazon DynamoDB carries 65 labels and Apache Cassandra 54, so the shares are not directly comparable.
Named in three categories this edition.
Named in two categories this edition.
First-choice share12%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate17%31%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#5A position in a field of 14; printed, not drawn.
Labels6554A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Amazon DynamoDB reading right to left. Rank and label count are printed, not drawn.MongoDB was named alongside these two in fourteen of the fourteen direct answers. MongoDB vs Amazon DynamoDB · MongoDB vs Apache Cassandra · Amazon DynamoDB vs PostgreSQL
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 nosql databases page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Amazon DynamoDBFirst choices, of fourteen modelsApache Cassandra
Direct20
Paraphrase30
Comparative00
Budget-constrained012 against Amazon DynamoDB · 5 against Apache Cassandra
Scale-constrained202 against Amazon DynamoDB · 1 against Apache Cassandra
Negative007 against Amazon DynamoDB · 11 against Apache Cassandra
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Across every category in the November 2026 Edition, Amazon DynamoDB and Apache Cassandra were named in the same answer 119 times, of the 208 answers naming Amazon DynamoDB and the 163 naming Apache Cassandra. In those answers Apache Cassandra took the first choice three times and Amazon DynamoDB eight.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Amazon DynamoDB and Apache Cassandra stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | ||||
| GPT-5.4 mini | | | | | ||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | | | |
| Grok 4.20 | | | | | | |
| 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 | | | | | |
Amazon DynamoDB Apache Cassandra first choice named as an alternative argued againstblank: not namedEach cell is one answer, Amazon DynamoDB on the left and Apache Cassandra on the right.The direct prompt
The plain question, one answer per model, grouped by where Amazon DynamoDB and Apache Cassandra stood in it.
Amazon DynamoDB first, Apache Cassandra not the choice
2 of 14 modelsApache Cassandra was named in the answer but not as the choice, or not at all.Claude Haiku 4.5Amazon DynamoDB, MongoDB alternatives: Firebase, Redis
GPT-5.4 miniAmazon DynamoDB, MongoDB alternatives: Azure Cosmos DB
Neither was the first choice, one was named
11 of 14 modelsThe answer put something else first and named one of the two as an alternative.Gemini 3.5 FlashMongoDB alternatives: Amazon DynamoDB, Azure Cosmos DB, Couchbase, Neo4j, Redis
Perplexity SonarMongoDB alternatives: Amazon DynamoDB, Apache Cassandra, Azure Cosmos DB, Couchbase, Neo4j, ScyllaDB
Grok 4.20MongoDB alternatives: Amazon DynamoDB, Apache Cassandra, Couchbase, Elasticsearch
Mistral SmallMongoDB alternatives: Amazon DynamoDB
DeepSeek V4 FlashMongoDB alternatives: Amazon DynamoDB, Apache Cassandra, Couchbase, DataStax
Qwen 3.7 FlashMongoDB alternatives: Amazon DynamoDB, PostgreSQL
Kimi K2MongoDB alternatives: Amazon DynamoDB, Apache Cassandra, Couchbase, Redis
GLM 4.7 FlashXMongoDB alternatives: Amazon DynamoDB, Apache Cassandra, Azure Cosmos DB, Couchbase
MiniMax M2.5MongoDB alternatives: Apache Cassandra, Elasticsearch, Neo4j
GPT-6 LunaMongoDB alternatives: Amazon DynamoDB, Couchbase
Muse Glimmer 30BMongoDB alternatives: Amazon DynamoDB
Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.Llama 4 MaverickMongoDB
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
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Amazon DynamoDB leads by eight points.
Amazon DynamoDB8%#2 of 12Apache Cassandra0%#12 of 12Mid-marketThe figures above
Amazon DynamoDB leads by eleven points.
Amazon DynamoDB12%#2 of 14Apache Cassandra2%#5 of 14Enterprise
Amazon DynamoDB leads by fourteen points.
Amazon DynamoDB17%#2 of 14Apache Cassandra3%#5 of 14What the models said about Amazon DynamoDB
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“AI models and experts often advise avoiding DynamoDB as a primary application database unless your use case is a perfect fit for key-value patterns.” Mistral Small · negative prompt · hard negative
“Avoid managed enterprise tiers (DynamoDB, Cosmos DB, etc.)” GLM 4.7 FlashX · budget prompt · hard negative
“DynamoDB (but model your access patterns rigidly upfront)... DynamoDB's provisioned mode can be cheap or catastrophically expensive if misconfigured.” Kimi K2 · scale prompt · soft negative
“lean toward a managed, cloud-specific solution (like DynamoDB or Cosmos DB), even with the potential lock-in” Qwen 3.7 Flash · scale prompt · first choice
“MongoDB (as a managed service like MongoDB Atlas) or Amazon DynamoDB would be my top recommendations” Grok 4.20 · paraphrase prompt · first choice
“For a key-value database service, Amazon DynamoDB is the most frequently recommended option.” Mistral Small · paraphrase prompt · first choice
What the models said about Apache Cassandra
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Verdict: Avoid unless you have a team of Cassandra specialists and a use case that truly demands it.” Kimi K2 · negative prompt · hard negative
“Avoid Apache Cassandra unless you expect millions of users immediately.” Qwen 3.7 Flash · budget prompt · hard negative
“Avoid Cassandra if you lack DevOps expertise for tuning.” MiniMax M2.5 · negative prompt · hard negative
“Absolute $0 software + you control infra: Apache Cassandra or CouchDB for wide-column / key-value” Muse Glimmer 30B · budget prompt · first choice
“Cassandra or Couchbase may be better long-term bets—though they require more operational investment” Kimi K2 · direct prompt · alternative
“Best for High-Volume Writes & Scaling... Consideration: Steeper learning curve and more complex operations” DeepSeek V4 Flash · budget prompt · alternative
Also compared
MongoDB vs Amazon DynamoDBMongoDB vs Apache CassandraAmazon DynamoDB vs PostgreSQLAmazon DynamoDB vs RedisAmazon DynamoDB vs Azure Cosmos DBAmazon DynamoDB vs Apache CouchDBPostgreSQL vs Apache CassandraRedis vs Apache CassandraApache Cassandra vs Azure Cosmos DBApache Cassandra vs Apache CouchDBAll twenty-one head-to-head pages and the full nosql standing
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.