Research comparison
Perplexity vs Chatgpt
Source-backed web research and quick market scans · General-purpose writing, research, analysis, and multimodal help
| Decision point | Perplexity | ChatGPT |
|---|---|---|
| Best for | Source-backed web research and quick market scans | General-purpose writing, research, analysis, and multimodal help |
| Category | Research | General AI Assistant |
| Price | Free + paid plans | Free + paid plans |
| AIToolsEssentials score | 4.6/5 | 4.8/5 |
Evidence status
Official support lists Standard/Free, individual Pro, individual Max, Enterprise Pro, and Enterprise Max. Max includes everything in Pro plus the highest access to advanced models, Comet Max Assistant, Create files and apps, and Brain. The reviewed public consumer-plan pages did not expose current Pro or Max dollar prices. An official organization-onboarding article lists Enterprise Pro at $40/seat monthly or $400/seat annually.
Official sources checked 2026-08-25Open verification questions
- Current public prices for individual Pro and Max were not verifiable from the reviewed official pages.
- A blanket commercial-use or output-ownership claim was not made because consumer outputs may be governed by third-party model licenses.
- Enterprise Max pricing was not publicly stated in the reviewed sources.
- The official Lily blog says the chat-completions API streams tokens; the official lily README in pplx-garden as of 2026-09-02 documents stream: false and rejects streaming. Treat serving-surface details as demo-specific until re-checked.
- Lily hardware support is stated as Apple GPU family 10 or later (M5 and newer) and macOS 26 or later in the official demo README; support on every later Apple chip or OS was not independently verified.
Perplexity is documented as an AI-powered answer/search product with citations, premium models, file uploads, Research, Create files and apps, Comet, and Computer features depending on plan. AI Data Retention is enabled by default for Free, Pro, and Max users and can be turned off for future collection; previously collected training data is not removed by a later opt-out. Enterprise data is not used for AI training, and Perplexity says its third-party model-provider agreements prohibit provider training on Perplexity data. Consumer terms warn that output may be subject to third-party model licenses and use restrictions. 2026-09-02 official blog “Optimizing On-Device Inference for Apple Silicon” (https://www.perplexity.ai/hub/blog/optimizing-on-device-inference-for-apple-silicon): Lily is a lightweight local inference engine built specifically for Apple silicon and Qwen3.6-35B-A3B so on-device compute does not bottleneck Hybrid Compute / Perplexity Computer tasks. Official facts from that post: Rust runtime; OpenAI-compatible chat-completions API; custom Metal kernels; neither PyTorch nor MLX in the execution path; standalone demo on GitHub. The official pplx-garden README names the demo at https://github.com/perplexityai/pplx-garden (lily/), Apache-2.0, greedy generation for the Qwen3.6-35B-A3B MLX affine 4-bit checkpoint format, Apple GPU family 10 or later (M5 and newer). Lily is not a new paid Perplexity plan SKU. Consumer Pro/Max dollar prices were not re-verified on 2026-09-02.
OpenAI officially lists ChatGPT Free, Go, Plus, Pro, Business, and Enterprise. Free is $0; paid self-service plans are billed per user per month, while Enterprise pricing is sales-assisted. Exact localized prices were not consistently exposed by the official pricing page during verification, so no unverified amounts are reported.
Official sources checked 2026-08-25Open verification questions
- Exact US-dollar prices for Go, Plus, Pro, and Business were not reliably retrievable from the official dynamic pricing page during this check.
- Enterprise pricing requires contacting OpenAI sales.
- Astra ChatGPT/API availability timing, any Astra-specific API token prices, and a public system-card URL were not confirmed as a published SKU on the official pricing page during the 2026-09-03 watch.
Official OpenAI sources confirm consumer and business plan availability. OpenAI's terms state that, as between the user and OpenAI and to the extent permitted by applicable law, users retain Input ownership and own Output. OpenAI's data controls documentation should be consulted for consumer training controls; business products and the API are covered by separate business-data commitments. 2026-09-03 watch: OpenAI released GPT-6 Astra. Official Path to Astra post (https://openai.com/index/path-to-astra/, 2026-09-01) designates Astra as the first model at Critical cybersecurity capability; advanced cyber workflows are limited at launch to trusted testers / Daybreak Blue. Axios reports limited Daybreak Access first, then ChatGPT Plus / Pro / Business / Enterprise and API developers in the coming days. This is not a new ChatGPT SKU. Plus/Pro plan prices were not confirmed as changed on 2026-09-03 and were not re-verified as dollar amounts on this date.
External benchmark context
- chatgpt-4o-latest-20250326 — rank #78, 1443±3 (80,696 votes; snapshot 2026-09-02).
Benchmark records apply only to the exact model/configuration shown—not the whole product. Independent same-task hands-on comparison: not yet published. See the testing protocol.
Current model lineup
Version names and prices move fast. This panel tracks what each product actually ships today, with checked dates — so the comparison stays about real models, not marketing names.
| Model | Role | Context | Pricing |
|---|---|---|---|
| Sonar (in-house) | Fast cited search answers | - | Included in all plans |
| Frontier models (GPT/Claude/Grok) | Selectable reasoning models behind search | varies | Pro $20/mo includes limited frontier queries |
- Perplexity routes to whichever underlying model you pick; its own Sonar handles most searches.
- 2026-09-02 official blog: Lily is an open-source local engine for Apple silicon and Qwen3.6-35B-A3B used in Perplexity Computer hybrid compute. It is not a new Pro/Max SKU and is tracked as a separate Local AI research watch, not as a 4.5 product rating.
| Model | Role | Context | Pricing |
|---|---|---|---|
| GPT-5.4 | Flagship reasoning + everyday assistant | ~400K | Included in Plus $20/mo; API per-token |
| GPT-5.4 Pro | Maximum-effort reasoning | ~400K | Pro $200/mo |
| GPT-5 mini / nano | Fast, cheap high-volume tasks | ~200K | API from ~$0.20/1M input |
- Verify current names at openai.com — OpenAI iterates point releases frequently.
- 2026-09-03: OpenAI released GPT-6 Astra. Official Path to Astra post designates it at Critical cybersecurity capability, with advanced cyber access gated to trusted testers / Daybreak Blue. Axios: limited Daybreak Access first, then ChatGPT Plus / Pro / Business / Enterprise and API in the coming days. It is not a new ChatGPT SKU and is tracked as a separate research watch. Plus/Pro plan prices were not confirmed as changed on this check.
Lineups verified from official vendor pages; confirm before purchase.
How to decide
Match each platform to your actual workflow constraints. Run one real workflow in each finalist before paying.
Quick recommendation
Use the trial checklist on each review page and the free scorecard to record time-to-result, corrections needed, and monthly cost at your expected volume before committing to a plan.