How AI Assistants Answer the Conversational-AI Category (August 2026): Share of Voice and Cited Sources

As of August 2026, US. Source: Ahrefs Brand Radar (ChatGPT + Google AI Overviews) plus parsed ChatGPT answers to a fixed set of buyer questions. Share of voice counts a brand as present when named anywhere in an answer or its cited sources, so it inflates where answers cite large multi-vendor lists; own-domain citation is the stricter signal. Brand matching for vendors whose name is a common English word over-counts. Method: scripts/build_demand_outputs.py + Brand Radar.

Share of voice by brand (ChatGPT vs Google AI Overviews)

Brand	ChatGPT SoV	AI Overviews SoV
Sendbird	0.943	0.912
Stream	0.962	0.912
CometChat	0.906	0.912
Twilio	0.943	0.879
Rocket.Chat	0.057	0.055

Most-cited domains (across sampled answers)

Domain	Pages cited	Responses citing
github.com	26	4
techfuelhq.com	1	3
pinggy.io	1	3
www.rocket.chat	8	3
mattermost.com	7	3
zulip.com	9	3
ossalt.com	4	3
docs.mattermost.com	10	3
docs.zulip.com	3	3
sendbird.com	26	3
docs.rocket.chat	10	3
www.twilio.com	25	2
www.cometchat.com	2	2
toolradar.com	1	2
www.jotform.com	3	2
getstream.io	14	2
opensourcechoice.com	1	2
platform.openai.com	4	2
talkjs.com	2	2
www.intercom.com	3	1
sprucehealth.com	6	1
docs.llamaindex.ai	6	1
www.g2.com	2	1
aimultiple.com	1	1
www.techradar.com	1	1
www.chatbase.co	2	1

Brands named and sources cited, by question (ChatGPT)

Question	US volume	Brands named	Links	Top domains cited
Sendbird alternative	450	Sendbird, Stream Chat, Stream, CometChat, Twilio, TalkJS, PubNub, Ably	17	www.g2.com, www.jotform.com, getstream.io, sendsar.com, alternativeto.net, interaction-lab.hashnode.dev
best self hosted LLM	100	Ollama	0
best RAG framework	70	LlamaIndex	36	docs.llamaindex.ai, docs.haystack.deepset.ai, toolhalla.ai, www.stork.ai, project-haystack.org, dropticks.com
best chat SDK for developers	30	Sendbird, GetStream, Stream Chat, Stream, CometChat, Twilio, TalkJS	46	getstream.io, sendbird.com, www.twilio.com, www.forasoft.com, sendsar.com, trtc.io
best AI chatbot for customer service	20	Intercom	35	www.gorgias.com, www.intercom.com, officialairanking.com, 7be.io, guides.reviews, www.zamp.ai
best chat API	20		28	projectsupply.in, apiscout.dev, techloghub.com, ai.google.dev, platform.openai.com, www.theaidevelopment.com
white label chat solution	20	TalkJS	12	talkjs.com, www.chat-data.com, www.atomchat.com, liveleader.com, www.conferbot.com, insighto.ai
best self hosted chat platform	20	Stream, Rocket.Chat, Mattermost, Zulip, Matrix	47	zulip.com, www.rocket.chat, docs.rocket.chat, toolradar.com, pinggy.io, opensourcechoice.com
how to add chat to my app	20		4	platform.openai.com
HIPAA compliant messaging API	20	Sendbird, Twilio	42	help.twilio.com, www.twilio.com, www.vonage.com, sendbird.com, api.support.vonage.com, developer.vonage.com
HIPAA compliant chat platform	10	Chatbase	24	sprucehealth.com, tigerconnect.com, gomohealth.com, www.qurvia.ai, www.chatbase.co, www.prnewswire.com
best open source chatbot	10	LibreChat, Open WebUI, Ollama	46	github.com, docs.openwebui.com, aipo.st, www.featurebase.app, www.requesty.ai, qaltech.com
best conversational AI platform	10	Intercom	25	techsifted.com, arxiv.org, aiunpacking.com, www.techradar.com, techloghub.com, www.theaireport.ai
self hosted alternative to Slack	10	Stream, Rocket.Chat, Mattermost, Zulip, Matrix	48	docs.rocket.chat, docs.zulip.com, zulip.com, pinggy.io, mith.tech, techfuelhq.com
best open source chat platform	0	Rocket.Chat, Mattermost, Zulip, Matrix	46	docs.zulip.com, github.com, docs.rocket.chat, toolradar.com, pinggy.io, opensourcechoice.com