Sonar Pro Search Paid vs 
GPT-5 Nano Paid
Sonar Pro Search vs GPT-5 Nano compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Sonar Pro Search — full profile › · GPT-5 Nano — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$15 /M outputManaged API (no infra to run)
$0.4 /M outputManaged API (no infra to run)
Sonar Pro Search vs GPT-5 Nano specs
| Spec | Sonar Pro Search | GPT-5 Nano | Winner |
|---|---|---|---|
| Maker | Perplexity | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 200K tokens | 400K tokens | |
| Input price | $3/M | $0.05/M | |
| Output price | $15/M | $0.4/M | |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | No | Yes | |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
GPT-5 Nano is ~38× cheaper than Sonar Pro Search on output tokens ($0.4 vs $15 per M tokens).
- You want frontier performance through a managed API
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You need the longer 400K context window
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Sonar Pro Search | GPT-5 Nano |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✗ | ✓ |
| 1M+ context window | ✗ | ✗ |
Benchmarks: Sonar Pro Search vs GPT-5 Nano
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Sonar Pro Search and GPT-5 Nano score
| Criterion | Sonar Pro Search | GPT-5 Nano |
|---|---|---|
| Cost-efficiency | 3.0 | 5.0 |
| Context window | 4.0 | 4.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 3.5 | 5.0 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
Sonar Pro Search Paid
Exclusively available on the OpenRouter API, Sonar Pro's new Pro Search mode is Perplexity's most advanced agentic search system. It is designed for deeper reasoning and analysis. Pricing is based...
GPT-5 Nano Paid
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
Other models in these families
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Frequently asked questions
Sonar Pro Search vs GPT-5 Nano — which is cheaper?
GPT-5 Nano is cheaper on output ($0.4/M vs $15/M).
Which has the larger context window?
GPT-5 Nano offers the larger context window (400K tokens).
Sonar Pro Search vs GPT-5 Nano — which should I pick in 2026?
Choose GPT-5 Nano for the lower output price ($0.4/M vs $15/M). It also gives you the larger 400K context window.
People also compare
Explore more open-source AI
Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.
Open the leaderboard →