Claude is now Reddit's most-mentioned AI development tool with 512 mentions (Mon–Thu), overtaking Cursor at 479. Anthropic grew 12.1% period-over-period — the top gainer for the second time in three weeks. Total market mentions across 4,500 tracked discussions are down 2.9% from the same period last week. Windsurf held flat at 96 after its 54% two-week collapse.
Methodology: This is a mid-week snapshot comparing Mon–Thu (–) against the same Mon–Thu window last week (–) for an apples-to-apples comparison.
Key Findings — Apr 13–16 vs Apr 6–9
- Claude: #1 on Reddit — 512 mentions (was 480, +6.7%), surpassing Cursor's 479 for the first time
- Anthropic: +12.1% — grew from 388 to 435, biggest gainer in the top 10
- v0: -17.0% — largest decline, dropping from 505 to 419
- Windsurf: flat at 96 — after dropping 54% over two weeks, mentions have stabilized
- Anthropic SDK: 14.7M NPM weekly — holding at 80.8% of OpenAI's 18.1M
Reddit Mentions: Apr 13–16 vs Apr 6–9 (Mon–Thu)
Now #1 (+6.7%)
Top Gainer
Biggest Decline
| Rank | Tool | This Week | Last Week | Change | Engagement |
|---|---|---|---|---|---|
| 1 | Claude | 512 | 480 | +6.7% | 926 (1.8x) |
| 2 | Cursor | 479 | 550 | -12.9% | 1,355 (2.8x) |
| 3 | ChatGPT | 472 | 479 | -1.5% | 780 (1.7x) |
| 4 | Anthropic | 435 | 388 | +12.1% | 1,118 (2.6x) |
| 5 | Lovable | 432 | 444 | -2.7% | 3,946 (9.1x) |
| 6 | v0 | 419 | 505 | -17.0% | 2,414 (5.8x) |
| 7 | OpenAI | 417 | 493 | -15.4% | 3,547 (8.5x) |
| 8 | GitHub Copilot | 267 | 260 | +2.7% | 1,032 (3.9x) |
| 9 | Replit | 156 | 146 | +6.8% | 284 (1.8x) |
| 10 | Windsurf | 96 | 96 | 0.0% | 360 (3.8x) |
Note: "Continue" (494 mentions) and "Aider" (317) are excluded from the ranking — both match common words in non-English subreddits. Raw data included for transparency.
Biggest Movers
Claude — Takes #1 for the First Time
+6.7% #1 on Reddit 480 → 512Claude's 512 mentions top Cursor's 479 for the first time in our tracking history. The shift comes as Cursor declined 12.9% from its 550 last period. Claude also dominated Hacker News this period with 1,380 score on a single story — the highest single-story score we've recorded in April.
Anthropic — Top Gainer Again
+12.1% 388 → 435Anthropic is the biggest gainer in the top 10 for the second time in three weeks (: +6.1%, now: +12.1%). Combined with Claude's rise, Anthropic-branded discussion now accounts for 947 combined mentions (Claude + Anthropic), surpassing any other company's combined footprint.
v0 and OpenAI — Steepest Declines
v0: -17.0% OpenAI: -15.4%v0 dropped from 505 to 419 and OpenAI from 493 to 417. Both maintain high engagement ratios (5.8x and 8.5x respectively), suggesting the remaining discussion is quality-driven even as volume contracts.
Windsurf — Stabilized at 96
0.0% change 96 → 96After dropping 54% over the previous two full weeks (332 → 218 → 152), Windsurf is showing its first period of stability. At 96 mentions in a Mon–Thu window, the tool is tracking toward ~170 for the full week — roughly consistent with last week's 152 full-week total.
Hacker News
Claude generated 1,380 score on a single story this period — the highest single-story score in April. For comparison, the same period last week had Claude at 1,016 on one story.
| Tool | Stories | Total Score | Comments |
|---|---|---|---|
| Claude | 1 | 1,380 | 1,005 |
Stack Overflow
Cursor leads with 10 questions (vs 9 last period), Claude follows with 7 (vs 10). ChatGPT rose from 2 to 3. v0 appeared with 2 new questions.
| Tool | This Period | Last Period | Change | Views | Answers |
|---|---|---|---|---|---|
| Cursor | 10 | 9 | +11.1% | 208 | 4 |
| Claude | 7 | 10 | -30.0% | 153 | 1 |
| ChatGPT | 3 | 2 | +50.0% | 52 | 1 |
| v0 | 2 | 1 | +100% | 42 | 0 |
| GitHub Copilot | 1 | 1 | 0% | 24 | 0 |
NPM Downloads
The top three AI SDKs remain stable this week. Anthropic SDK holds at 14.7M weekly — 80.8% of OpenAI's 18.1M. Vercel's AI SDK ticked up to 11.3M.
| Package | Weekly | Monthly |
|---|---|---|
| openai | 18.1M | 72.2M |
| @anthropic-ai/sdk | 14.7M | 52.2M |
| ai (Vercel) | 11.3M | 45.5M |
| @langchain/core | 3.7M | 15.6M |
| @google/generative-ai | 2.6M | 10.7M |
| langchain | 2.2M | 9.6M |
| @ai-sdk/xai | 1.2M | 4.6M |
| @ai-sdk/perplexity | 557K | 2.2M |
| ollama | 468K | 2.0M |
| cohere-ai | 402K | 1.7M |
GitHub Stars: Top 15
| Rank | Repository | Stars | Forks |
|---|---|---|---|
| 1 | tensorflow/tensorflow | 191,500 | 74,814 |
| 2 | microsoft/vscode | 183,944 | 39,239 |
| 3 | Significant-Gravitas/AutoGPT | 183,510 | 46,224 |
| 4 | ollama/ollama | 169,251 | 15,643 |
| 5 | AUTOMATIC1111/stable-diffusion-webui | 156,211 | 28,990 |
| 6 | huggingface/transformers | 149,229 | 30,280 |
| 7 | anomalyco/opencode | 144,913 | 16,404 |
| 8 | langchain-ai/langchain | 133,872 | 22,121 |
| 9 | f/awesome-chatgpt-prompts | 133,671 | 17,761 |
| 10 | anthropics/skills | 119,465 | 13,818 |
| 11 | langgenius/dify | 113,205 | 17,336 |
| 12 | langflow-ai/langflow | 112,591 | 7,498 |
| 13 | open-webui/open-webui | 108,999 | 14,871 |
| 14 | microsoft/generative-ai-for-beginners | 96,813 | 50,712 |
| 15 | pytorch/pytorch | 92,964 | 25,176 |
Notable movement: anthropics/skills gained ~4,961 stars since last week (114,504 → 119,465, +4.3%). anomalyco/opencode added ~3,912 stars (141,001 → 144,913, +2.8%).
What the Data Shows
Anthropic Ecosystem Is Pulling Ahead in Developer Mindshare
Claude at #1 on Reddit, Anthropic +12.1%, Claude leading HN with 1,380 score, the SDK holding at 14.7M NPM weekly, and anthropics/skills adding nearly 5K GitHub stars — every signal in our tracking points in the same direction this week.
The Top 10 Is Compressing
Tools ranked #1 through #7 are all within a 95-mention band (512 down to 417). A year ago, the gap between #1 and #7 was typically 3–4x. This compression means small shifts in attention — a single viral thread — can reshuffle the leaderboard.
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