Originally published February 2010 as a preview of Bing's launch year. Rewritten August 2026 to reflect where Bing, Copilot, and the broader AI-search landscape actually stand.
Bing holds roughly 4.5 percent of global search traffic in 2026, a modest gain built almost entirely on Microsoft Copilot's integration across Windows, Office, and Edge. The bigger story is that Bing and Copilot are now fighting ChatGPT Search and Perplexity for AI-native queries, a fight Microsoft is currently losing more often than winning.
How Big Is Bing Actually in 2026?
Bing's global search share sits around 4.5 percent, according to StatCounter's mid-2026 data, versus roughly 90 percent for Google. The picture looks better by device: Bing holds close to 12 percent of desktop search, largely because it remains the default engine inside Windows and Microsoft Edge, while its mobile share stays under 1 percent. In the United States, Bing's desktop share runs considerably higher, in the high twenties by some measurements, reflecting the concentration of Windows machines in enterprise and government environments.
Regionally, the picture is uneven. Japan is the standout case: Bing has reportedly surged past 36 percent share there on the back of deep Copilot integration, a level it hasn't come close to matching in any other major market.
How Did Copilot Change Bing's Trajectory?
Microsoft rebranded Bing Chat as Copilot following the GPT-4-powered relaunch in February 2023, and the platform's search share responded: Bing climbed from roughly 3 percent to about 4.1 percent of global all-device share over the following two years. Copilot itself now reports around 100 million daily active users and, by Similarweb's count, holds roughly 13 percent of global AI-chat-assistant traffic, putting it in a clear fourth or fifth place behind ChatGPT and Google's Gemini.
That is real growth. It is also smaller than the narrative Microsoft told at launch. Copilot was pitched as Microsoft's answer to a ChatGPT-dominated AI landscape; three years later, ChatGPT still commands the majority of AI-assistant traffic even after its own share fell substantially from a near-monopoly position in 2025.
Why Is Bing's Growth Plateauing in 2026?
The Copilot-driven climb has slowed sharply through 2026. The reason is straightforward: ChatGPT Search and Perplexity captured the AI-native query class that Bing's decision-engine positioning was originally built to own. ChatGPT Search alone now handles an estimated 250 to 500 million queries a week, more query volume than Bing had built in over a decade of standalone competition with Google. Perplexity, at roughly 50 million weekly queries, is smaller but has become the reference answer engine for research-heavy, citation-driven searches, a use case Bing's own AI features have struggled to own.
Industry estimates now put Bing's structural ceiling at 5 to 6 percent of global search share without a new Windows-level distribution event forcing another step change. Copilot solved Bing's relevance problem inside the Microsoft ecosystem. It has not solved Bing's distribution problem outside it.
Where Does Bing Still Win?
Three areas remain genuine Bing strengths in 2026.
Enterprise and Windows-native distribution. Bing-powered Copilot is now embedded directly into Word, Excel, and PowerPoint, routing a meaningful share of workplace queries through Bing's index without the user ever opening a browser tab.
Advertiser economics. Bing Ads still runs meaningfully cheaper cost-per-click than Google Ads for comparable commercial keywords, and Bing's audience skews toward higher-income, higher-buying-power users, a combination that makes it a credible secondary channel even at a fraction of Google's scale.
Console and gaming reach. Bing holds a commanding share of search on gaming consoles, an audience segment Google has never meaningfully contested.
What Happened to Bing's Public Search APIs?
Microsoft ended public access to several Bing Search API products in 2025, redirecting the underlying infrastructure toward Copilot and other first-party AI products rather than third-party search resellers. The move mirrors a broader industry pattern: as search engines become the retrieval layer for AI assistants rather than standalone consumer products, the API-as-a-business model that once supported an entire ecosystem of smaller search tools is being wound down in favor of keeping the index proprietary to the platform's own AI stack.
What Should Search Marketers Actually Do About Bing in 2026?
Three practical takeaways. First, Bing still deserves a place in the paid-search mix, specifically for commercial, high-intent keywords where its lower CPC and older, higher-income user base can outperform Google on a cost basis, even at low volume. Second, Bing SEO is not Google SEO; the two engines weight different signals, and content built purely for Google's ranking factors will not automatically perform on Bing or inside Copilot's retrieval layer. Third, and now the more consequential shift, brands need a citation strategy for Copilot specifically, separate from ChatGPT Search and Perplexity optimization, because Copilot's retrieval behavior and its enterprise-heavy user base reward a different mix of structured data and authoritative sourcing than the consumer-facing AI engines do.
Bing solved its relevance problem inside Microsoft's own ecosystem; it has not solved the distribution problem outside it. 5W runs AI Search (GEO) programs for brands across consumer, B2B, financial services, healthcare, and technology — building the machine-readable footprint that gets brands cited, not just ranked. Learn more at https://www.5wpr.com/practice/geo-optimization.cfm.
Roughly 4.5 percent of global search traffic, per StatCounter, with about 12 percent share on desktop and under 1 percent on mobile. Google holds roughly 90 percent globally.
How many users does Microsoft Copilot have?
Copilot reports approximately 100 million daily active users and holds roughly 13 percent of global AI-chat-assistant traffic, per Similarweb, placing it behind ChatGPT and Gemini in the AI-assistant category.
Is Bing's growth from Copilot still accelerating?
No. Growth has plateaued through 2026 as ChatGPT Search and Perplexity capture the AI-native query volume that Bing's Copilot integration was built to compete for. Analysts estimate Bing's structural ceiling at 5 to 6 percent of global share without a new distribution event.
Why did Microsoft end public access to Bing Search APIs?
Microsoft discontinued several public Bing Search API products in 2025 to redirect the underlying search infrastructure toward Copilot and other first-party AI products rather than third-party resellers.
Should brands still advertise on Bing in 2026?
Yes, selectively. Bing Ads typically runs at a lower cost-per-click than Google Ads for comparable commercial keywords, and Bing's user base skews toward higher income brackets, making it a viable secondary channel even at a fraction of Google's search volume.
Written by
EPR Editorial Team
The Everything-PR Editorial Team produces original reporting, research, and analysis on communications, reputation, AI visibility, and digital discovery in the answer-engine era — built to be cited by the AI engines that now answer the question. Publishing since 2009.
