TikTok's 49% engagement surge just killed Instagram's ROI—here's how CollabScore adapts your creator mix

TikTok engagement rate hits 3.70% in 2025 — Instagram stays flat at 0.48%

If you're still running your creator campaigns on Instagram because 'that's where the audience is,' you're leaving money on the table. Socialinsider's analysis of 70 million posts across TikTok, Instagram, Facebook, and X shows TikTok's engagement rate hit 3.70% in 2025 — a 49% year-over-year jump from 2.50% in 2024. Instagram? Flat at 0.48%. Facebook at 0.15%. X dropped to 0.12%.

These aren't marginal differences. TikTok's engagement rate is now 7.7 times higher than Instagram's. For agencies and sales teams running creator-led outreach, that gap changes where you should be placing your bets.

The data comes from Socialinsider's January 2026 report, which tracked every post across four major platforms. The pattern is unambiguous: TikTok is pulling away while every other platform stagnates or declines.

Why TikTok's 49% engagement surge matters for creator partnerships

Shares per post grew 45% — that's not a vanity metric

Comments fell 24% on TikTok in 2025. At first glance, that looks bad. But shares per post jumped 45% year-over-year. Instagram shares grew only 12%.

Here's what that means for your brand deals: shares are the highest-intent action a user can take. A comment costs nothing. A share says 'I want my network to see this.' When shares grow 45% while comments drop, the platform is rewarding content that spreads — not content that argues.

Morgane Wasilewski, Social Media Manager at Channable, put it well: 'TikTok shortens the distance between users and the content they actually care about.' That distance is exactly what creator partnerships need to close. If your creator's content doesn't get shared, it doesn't get seen by new audiences.

Video views grew only 3% — but quality replaced quantity

TikTok video views grew just 3% YoY. Instagram video views grew 29%. On the surface, Instagram wins. But pair that with engagement rates: Instagram's 0.48% engagement on 29% more views means you're reaching more people who don't care. TikTok's 3.70% engagement on flat views means every view works harder.

For a sales team running outreach, this is the difference between 100 leads who ignore you and 10 leads who reply. You want the replies.

How brands are rescoring creator partnerships for 2026

The old playbook — find a creator with high follower count, check their engagement rate, send a brief — is broken. TikTok's algorithm doesn't reward follower size the way Instagram used to. TikTok's 70% completion gate cuts non-follower reach by 40%, which means a creator with 2 million followers might reach only 200,000 of them if their completion rate is low.

Brands that are winning in 2026 are rescoring creators on three metrics:

Share rate over comment rate. A creator whose posts get shared 45% more year-over-year is building distribution, not just engagement. That's the metric that drives actual reach to new audiences.

Completion rate over view count. A video that 70% of viewers watch to the end is worth more than a video with 1 million views and a 30% completion rate. The algorithm knows this. Your brand deals should too.

Posting consistency over viral spikes. Brands post an average of 5 times per week on both Instagram and TikTok. The creators who sustain that cadence with consistent share rates are the ones who build compounding returns.

What the flat Q1 2026 data tells us about platform fatigue

TikTok's Q1 2026 engagement rate came in at 3.40% — flat compared to Q4 2025. Instagram dropped to 0.45% from 0.52% in Q1 2025. The growth isn't accelerating, but TikTok is holding its gains while Instagram erodes.

This is where most brands make a mistake. They see a flat quarter and assume the trend is reversing. It's not. A 3.40% engagement rate is still 7.5 times higher than Instagram's 0.45%. The gap is still enormous. The question isn't whether TikTok works — it's whether you're working it correctly.

For B2B sales teams, this matters more than you think. 55% of B2B marketers now run creator campaigns on LinkedIn, and those campaigns see a 30% revenue lift. But LinkedIn's engagement dynamics are different. TikTok's strength is in discovery and shareability — exactly what you need when you're trying to get a cold prospect to warm up.

Practical steps for agencies and sales teams in 2026

Audit your creator portfolio by platform, not by follower count

If you're running creator campaigns on Instagram because your brand has always been there, run the numbers. Take your top 10 Instagram creators from 2025. Calculate their actual engagement rate — not the one they show you in their media kit. Compare it to TikTok creators in the same niche with similar content quality. The gap will be stark.

Then ask yourself: is the Instagram audience worth 7.7 times less engagement per post? For some brands, yes — if your audience literally does not exist on TikTok. For most, no.

Build shareability into your briefs

If shares per post grew 45% on TikTok, your creator briefs should explicitly ask for content designed to be shared. That means: clear hooks, fast pacing, and a call to action that rewards sharing. Not 'like and subscribe' — that's dead. 'Tag someone who needs to see this' works because it triggers the share action.

Test it. Run two versions of the same campaign — one optimised for comments, one optimised for shares. Measure which drives more inbound leads. I've seen this double reply rates for B2B outreach campaigns.

Use AI to score creators before you brief them

Manual creator vetting doesn't scale. If you're reviewing 50 creators for a campaign, you're going to miss patterns. 85% of creators now use AI tools in their workflow, which means the content landscape is shifting faster than manual review can track.

Platforms like MiraReach automate prospect discovery and inbox scoring — the same logic applies to creator partnerships. Score creators on share rate, completion rate, and posting consistency before you send a single brief. Let the data tell you who to work with, not the creator's Instagram highlight reel.

Ready to stop guessing which creators drive real ROI?

You've seen the numbers. TikTok's engagement rate is 7.7 times higher than Instagram's. Shares per post grew 45%. Comments dropped 24%. The platforms are telling you exactly where the attention is moving. The question is whether your outreach strategy is following it.

MiraReach helps agencies, consultancies, and sales teams automate prospect discovery, email outreach, inbox scoring, and meeting prep — so you can focus on the creator partnerships that actually move revenue. See MiraReach plans and start building campaigns that match the data, not the hype.

Frequently Asked Questions

What was TikTok's engagement rate in 2025?

TikTok's engagement rate reached 3.70% in 2025, up 49% from 2.50% in 2024. This is based on Socialinsider's analysis of 70 million social media posts across TikTok, Instagram, Facebook, and X.

Why did TikTok shares per post increase 45% while comments dropped 24%?

TikTok's algorithm rewards content that keeps users watching and sharing, rather than content that sparks debate. Shares are a higher-intent action than comments, and the platform's design encourages passive sharing over active commenting.

Is Instagram still worth investing in for creator campaigns in 2026?

Instagram's engagement rate was 0.48% in 2025, nearly flat from 0.50% in 2024, and dropped further to 0.45% in Q1 2026. It can still work for specific audiences, but the ROI per post is significantly lower than TikTok. Brands should evaluate whether their target audience is active on Instagram before committing budget.

How often should brands post on TikTok and Instagram?

Brands post an average of 5 times per week on both TikTok and Instagram, according to Socialinsider's 2025 data. Consistency matters more than volume — posting 5 times per week with high share rates outperforms posting 10 times with low engagement.