Here's the Lodash parity data I've compiled so far.

The status "100" means it's an exact match with the Lodash implementation.

Implemented

name	notes	status	rename
capitalize		100
uniqBy	• Renamed to unique.	yes	unique
groupBy	• Renamed to group. • Property shorthand not supported (but coming soon).	yes	group
pickBy	• Renamed to pick.	yes	pick
castArray	• If the given value is an array, the array is shallow copied. • We also have castArrayIfExists which is similar but null/undefined are returned as is.	yes
pick	• Exactly one array of keys must be passed. No more, no less. • You may pass a selector function instead (pickBy functionality).	yes
zip		100
set	• “Key arrays” are not supported. Only string-based JSON paths.	yes
clone	• Unsure about the differences as of now. Help wanted.	yes
flow	• Renamed to chain. • Full type safety with TypeScript (to a max of 10 functions). • Instead of taking an array of functions, each function is an argument to chain.	yes	chain
isPlainObject	• Returns false for built-in namespaces like Math, JSON, etc. • Returns false for the arguments object of a function call.	yes
get	• “Key arrays” are not supported. Only string-based JSON paths.	yes
isFunction		100
isString	• Boxed strings (e.g. new String("foo")) are not supported.	yes
debounce	• No leading or trailing option. Only a trailing debounce is supported. • No maxWait option. The function may be debounced indefinitely if called frequently enough. • The pending method is renamed to isPending.	yes
isBoolean	• Boxed values (e.g. new Boolean(true)) are not supported.	yes
isNumber	• Boxed numbers (e.g. new Number(0)) are not supported.	yes
throttle	• No leading or trailing option. Only a trailing behavior is supported. • The pending method is renamed to isThrottled. • No cancel or flush method.	yes
isObject	• Returns false for RegExp, Date, and other built-in, complex objects. • Returns false for arrays. • Returns false for functions.	yes
isEmpty	• There are likely quite a bit of differences here. Help wanted on this!	yes
snakeCase	• Renamed to snake.	yes	snake
startCase	• Renamed to title.	yes	title
once	• Support for clearing the cached result to allow running the function again. See the once.reset function.	yes
kebabCase	• Renamed to dash.	yes	dash
memoize	• Built-in support for TTL (time to live) invalidation.- By default, the cache key is computed with JSON.stringify of the arguments array. Lodash only uses the first argument if a custom key resolver is not provided. • Lodash uses a Map to support any type of cache key, while only JSON-compatible arguments are supported in Radashi. • No cache property, so the cache is not directly accessible.	yes	memo
uniq	• Renamed to unique.	yes	unique
camelCase	• Renamed to camel.	yes	camel
cloneDeep	• Ours accepts a custom strategy (similar to cloneDeepWith).	yes
flatten	• Renamed to flat.	yes	flat
difference	• Renamed to diff. • Requires two arrays exactly. No more, no less. • Supports an “identity function” that enables comparison through a property or other computation.	yes	diff
differenceWith	• Renamed to diff. • Requires two arrays exactly. No more, no less. • Use an “identity function” that enables comparison through a property or other computation insted of an comparator function	yes	diff
isArray		100
isBoolean		100
isDate		100
isEqual		100
isError		100
isInteger	• Renamed to isInt. • Radash is function is for tree-shaking, and it gets removed when your code is minified • Improve type inference	yes	isInt

Not implemented

name	notes	status	rename
reduce	• “Collection” polymorphism is unaligned with Radashi's vision.	no
filter	• “Collection” polymorphism is unaligned with Radashi's vision.	no
some	• “Collection” polymorphism is unaligned with Radashi's vision.	no
values	• Use Object.values instead.	no
map	• “Collection” polymorphism is unaligned with Radashi's vision.	no
padEnd	• Use String.prototype.padEnd instead.	no
forEach	• “Collection” polymorphism is unaligned with Radashi's vision.	no
flattenDeep	• Use Array.prototype.flat instead.	no
keys	• Use Object.keys instead. • Radashi has its own keys function that is unrelated to Lodash keys.	no

Unknown

name	notes	status	rename
defaults
merge	• Radashi has a merge function, but it's for merging two arrays based on a key function.
truncate		no
union		no
isArguments		no
mergeWith		no
escapeRegExp		no
escape		no
isMatch		no
isUndefined		no
isNil		no
has		no
deburr		no
defaultsDeep	- voce pode usar assign passando o valor default como primeiro pametro. lodash.defaultsDeep(obj, default) === radashi.assing(default, obj)	yes
unescape		no
toPath		no
reject		no
transform
lowerCase		no
toLower	use String.toLowerCase instead	no
padStart	use String.padStart instead	no
isTypedArray		no
chunk	• Renamed to cluster.	yes	cluster
pad		no
without
toArray
maxBy
xorBy
flatMap
startsWith
invokeMap
isEqualWith		no
every
uniqueId
uniqWith
tail
forOwn
intersection
compact
orderBy
last	- tem um propriedade opcional que permite passar valor default	yes
pullAll
repeat
keysIn
create
range
indexOf
zipObject
lowerFirst
unset
keyBy
eq
trim
shuffle
trimStart
unionWith
isError
cond
toNumber
size
trimEnd
clamp
isObjectLike
at
differenceWith
cloneDeepWith
head
hasIn
isRegExp
sample
words
isDate
toPlainObject
endsWith
round
unionBy
xor
findLast
sortedLastIndex
invert
partition
setWith
random
result
findKey
defer
times
initial
invoke
pull
upperCase
isLength
isNull		no
inRange
sampleSize
remove
toString
parseInt
flowRight
differenceBy
property
assign	- radash aceita somente 2 objetos - radashi e' maior seguranca de tipos

Not all Lodash functions are included. These were chosen based on NPM downloads of > 10,000