Sonar Pro Search Paid vs 
GPT-3.5 Turbo (older v0613) Paid
Sonar Pro Search vs GPT-3.5 Turbo (older v0613) compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Sonar Pro Search — full profile › · GPT-3.5 Turbo (older v0613) — 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)
$2 /M outputManaged API (no infra to run)
Sonar Pro Search vs GPT-3.5 Turbo (older v0613) specs
| Spec | Sonar Pro Search | GPT-3.5 Turbo (older v0613) | Winner |
|---|---|---|---|
| Maker | Perplexity | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 200K tokens | 4K tokens | |
| Input price | $3/M | $1/M | |
| Output price | $15/M | $2/M | |
| Vision / multimodal | Yes | No | |
| Tool / function calling | No | Yes | |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
GPT-3.5 Turbo (older v0613) is ~7.5× cheaper than Sonar Pro Search on output tokens ($2 vs $15 per M tokens).
- You want frontier performance through a managed API
- You need the longer 200K context window
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Sonar Pro Search | GPT-3.5 Turbo (older v0613) |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✗ | ✓ |
| 1M+ context window | ✗ | ✗ |
Benchmarks: Sonar Pro Search vs GPT-3.5 Turbo (older v0613)
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Sonar Pro Search and GPT-3.5 Turbo (older v0613) score
| Criterion | Sonar Pro Search | GPT-3.5 Turbo (older v0613) |
|---|---|---|
| Cost-efficiency | 3.0 | 4.5 |
| Context window | 4.0 | 2.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 3.5 | 3.5 |
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-3.5 Turbo (older v0613) Paid
GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.
Frequently asked questions
Sonar Pro Search vs GPT-3.5 Turbo (older v0613) — which is cheaper?
GPT-3.5 Turbo (older v0613) is cheaper on output ($2/M vs $15/M).
Which has the larger context window?
Sonar Pro Search offers the larger context window (200K tokens).
Sonar Pro Search vs GPT-3.5 Turbo (older v0613) — which should I pick in 2026?
Choose GPT-3.5 Turbo (older v0613) for the lower output price ($2/M vs $15/M). Choose Sonar Pro Search if you need the larger 200K 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 →