In this survey, we compare features, language support, and pricing for 15 vendors of Sentiment Analysis. We consider only hosted services with public API: several algorithms on Algorithmia marketplace, Microsoft Text Analytics, Repustate, Google Cloud Natural Language, IBM Watson NLU, Meaning Cloud, TheSay PreCeive, AWS Comprehend, Aylien, Bozon NLP, Salesforce Einstein Language, Twinword.

1. CLOUD SENTIMENT ANALYSIS
VENDOR OVERVIEW
by Intento
April 2018
Grigory Sapunov
Konstantin Savenkov
Kehsin Su
Alexander Zelenin

2. April 2018© Intento, Inc.
About
At Intento, we make Cognitive Services easy to
discover, access, and evaluate for a specific use.
—
Evaluation is a pain for everyone: to compare
different services, you have to sign a lot of contracts
and integrate many APIs.
—
This is a preliminary overview of 15 Sentiment
Analysis services we integrated to Intento.
Quantitative Evaluation will follow.
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3. April 2018© Intento, Inc.
Important highlights
Every service provides either sentiment score or
sentiment label with confidence
—
Advanced features: aspect-based and entity-
based sentiment, custom models
—
A total of 23 languages covered
—
Price varies from $0.75 to $99* per 10K API calls
3
* according to average prices in USD per 10,000 API requests advertised by vendors

4. April 2018© Intento, Inc.
Overview
1 LIST OF SERVICES
2 FEATURE COMPARISON
3 LANGUAGE SUPPORT
4 PRICE COMPARISON
APPENDIX
23
Languages
15
Sentiment Analysis
Services
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5. April 2018© Intento, Inc.
1Sentiment Analysis Services*
Compared
* We have evaluated general purpose Cloud Sentiment analysis services with prebuilt models, provided via API. Some vendors also provide web-based,
on-premise or custom SA engines, which may differ on all aspects from what we have evaluated.
Algorithmia hyingao/
LexSent (1)
Algorithmia mtman/
Sentiment Analysis (2)
Algorithmia nlp/
Sentiment Analysis (3)
Algorithmia nlp/Social
Sentiment Analysis (4)
Amazon Comprehend
API
Aylien
Text Analysis API
Boson NLP
Sentiment Analysis API
Google Cloud Natural
Language API
IBM Watson
NLU
Meaning Cloud
Sentiment Analysis API
Microsoft
Text Analytics API
Repustate
Text Analytics API
Salesforce Einstein
Language
Twinword Sentiment
Analysis
TheSay
PreCeive API
Detailed data on each service provided in the Appendix
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6. © Intento, Inc. / Confidential / March 2018
2 Feature Comparison
6
custom
m
odels
confidence
score
sentim
entlabel
sentim
entscore
aspect-based
entity-based
m
agnitudeagreem
entironydetection
Algorithmia hyingao/LexSent
Algorithmia mtman/Sentiment Analysis
Algorithmia nlp/Sentiment Analysis
Algorithmia nlp/Social Sentiment Analysis
Amazon Comprehend API
Aylien Text Analysis API
Boson NLP Sentiment Analysis API
Google Cloud Natural Language API
IBM Watson NLU
Meaning Cloud Sentiment Analysis API
Microsoft Text Analytics API
Repustate Text Analytics API
Salesforce Einstein Language
Twinword Sentiment Analysis
TheSay PreCeive API
subjectivity

7. April 2018© Intento, Inc.
3 Language Support
3.1 Supported and Unique per Provider
3.2 Language Popularity
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8. April 2018© Intento, Inc.
0
5
10
15
20
m
icrosoft
repustate
google
ibm
algorithm
ia3
m
eaningcloud
thesay
am
azon
algorithm
ia1
algorithm
ia2
algorithm
ia4
aylien
boson
salesforce
tw
inw
ord
1
3
5
1111111
2
3
66
99
1717
Total
Unique
Supported and Unique Languages
Unique
languages-
supported
exclusively by
one provider
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9. April 2018© Intento, Inc.
Language PopularityNumberofsupportingproviders
0
5
10
15
English
Spanish Russian
ArabicGerman
French Chinese
Italian
Portu-
guese
Korean
Arabic
Japanese
Russian
Dutch
Polish
Turkish
Catalan,
Danish,
Finnish,
Greek,
Norwegian,
Swedish,
Hebrew,
Thai,
Vietnamese
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10. April 2018© Intento, Inc.
4 Price comparison*
* Average price in USD per 10,000 API requests according to the prices published on the website (if any).
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11. March 2018© Intento, Inc.
5 Conclusions
Services from different vendors can be used
interchangeably as sentiment scores can be
mapped to label and confidence and vice versa
—
130x difference in price requires careful
performance evaluation
—
Language coverage is limited, possibly could be
improved using Machine Translation (check our
recent report)
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12. April 2018© Intento, Inc.
Evaluate vendors
on your own data
with no effort
—
up to +230% quality and
-87% price by choosing
the right vendor
—
save 12wk of engineering
and data science efforts
Manage and
optimise vendor
portfolio with our
smart routing AI
—
use the best vendor for each
language pair and domain
with no hassle
Single integration
and contract to
multiple vendors
and models
—
save upfront 5-7wk per each
vendor API
—
save 1d per month per each
vendor API
Intento Single API
Reach us for pricing and contract12

13. CLOUD SENTIMENT ANALYSIS
VENDOR OVERVIEW
by Intento (https://inten.to)
April 2018
Konstantin Savenkov
ks@inten.to
(415) 429-0021
2150 Shattuck Ave
Berkeley CA 94705
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14. April 2018© Intento, Inc.
3 APPENDIX A. LIST OF SERVICES.
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15. April 2018© Intento, Inc.
Algorithmia
hyindao/LexSent
Features sentiment score
Languages zh
Pricing* 2.00
Homepage https://algorithmia.com/algorithms/
hyinghao/LexSent/
* average price in USD per 10,000 API requests according to the
prices published on the website
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16. April 2018© Intento, Inc.
Algorithmia
mtman/Sentiment Analysis
Features sentiment score
Languages en
Pricing* 1.32
Homepage https://algorithmia.com/algorithms/
mtman/SentimentAnalysis/docs
* average price in USD per 10,000 API requests according to the
prices published on the website
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17. April 2018© Intento, Inc.
Algorithmia
nlp/Sentiment Analysis
Features sentiment score
Languages en, zh, ar, fr, de, es
Pricing* 1.05
Homepage https://algorithmia.com/algorithms/
nlp/SentimentAnalysis/docs
* average price in USD per 10,000 API requests according to the
prices published on the website
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18. April 2018© Intento, Inc.
Algorithmia
nlp/Social Sentiment Analysis
Features sentiment label,
confidence score
Languages en
Pricing* 1.00
Homepage https://algorithmia.com/algorithms/
nlp/socialsentimentAnalysis/docs
* average price in USD per 10,000 API requests according to the
prices published on the website
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19. April 2018© Intento, Inc.
Amazon Web Services
Comprehend API
* average price in USD per 10,000 API requests according to the
prices published on the website, assuming 3 nlp units per request
Features sentiment label,
confidence score
Languages en,es
Pricing* 0.75-3.00
Homepage https://aws.amazon.com/
comprehend/
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20. April 2018© Intento, Inc.
Aylien
Text Analysis API
* average price in USD per 10,000 API requests according to the
prices published on the website
Features sentiment label, confidence score,
subjectivity label, subjectivity confidence,
aspect-based sentiment
Languages en
Pricing* 1.00-6.13
Homepage https://aylien.com/text-api/
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21. April 2018© Intento, Inc.
Bozon NLP
Sentiment Analysis API
* average price in USD per 10,000 API requests according to the
prices published on the website, depends on USD/CNY rate
Features sentiment label, confidence score,
domain-specific sentiment analysis
Languages zh
Pricing* 4.46-6.37
Homepage https://bosonnlp.com/product
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22. April 2018© Intento, Inc.
Google Cloud
Natural Language API
* average price in USD per 10,000 API requests according to the
prices published on the website
Features sentiment score, sentiment magnitude
entity-based sentiment
Languages en, zh, zh-Hant, fr,
de, it, ja, ko, pt, es
Pricing* 2.50-10.00
Homepage https://cloud.google.com/natural-
language/
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23. April 2018© Intento, Inc.
IBM Watson
Natural Language Understanding API
* average price in USD per 10,000 API requests according to the
prices published on the website
Features sentiment score, sentiment label,
custom models
Languages en, ar, fr, de, it, ko, pt,
ru, es,
Pricing* 2.00-30.00
Homepage https://www.ibm.com/watson/
services/natural-language-
understanding/
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24. April 2018© Intento, Inc.
Meaning Cloud
Sentiment Analysis API
* average price in USD per 10,000 API requests according to the
prices published on the website
Features sentiment label, confidence score,
agreement, subjectivity, irony, aspect-based
sentiment, custom models
Languages en, es, fr, it, ca, pt
Pricing* 2.38-8.35
Homepage https://www.meaningcloud.com/
developer/sentiment-analysis
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25. April 2018© Intento, Inc.
Microsoft Azure
Text Analytics API
* average price in USD per 10,000 API requests according to the
prices published on the website
Features sentiment score
Languages en, da, nl, fi, fr, de, el, it, ja, ko,
no, pl, pt-PT, pt-BR, ru, es, sv, tr
Pricing* 5.00-29.89
Homepage https://azure.microsoft.com/en-us/
services/cognitive-services/text-
analytics/
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26. April 2018© Intento, Inc.
Repustate
Text Analytics API
* average price in USD per 10,000 API requests according to the
prices published on the website
Features sentiment score, aspect-based sentiment
Languages en, ar, zh, nl, fr, de, he, it, ja, ko,
pl, pt, ru, es,tr, th, vi
Pricing* 16.99-99.00
Homepage https://www.repustate.com/text-
analytics-api/
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27. April 2018© Intento, Inc.
Salesforce
Einstein Language API
* bundled with the Salesforce subscription
Features sentiment label, confidence score, custom
models
Languages en
Pricing N/A*
Homepage https://metamind.readme.io/docs/
intro-to-einstein-language
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28. April 2018© Intento, Inc.
Twinword
Sentiment Analysis
* average price in USD per 10,000 API requests according to the prices published on the website
** when paid via Amazon Marketplace
Features sentiment score, sentiment label,
sentiment ratio
Languages en
Pricing* 1.32-10.00**
Homepage https://www.twinword.com/api/
sentiment-analysis.php
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29. April 2018© Intento, Inc.
TheSay
PreCeive API
* public pricing not available
Features sentiment label, confidence score
Languages en, de, es
Pricing N/A*
Homepage http://www.theysay.io/product/
preceive/
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