o1-pro Paid vs GPT-3.5 Turbo Paid
o1-pro vs GPT-3.5 Turbo compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
o1-pro — full profile › · GPT-3.5 Turbo — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$600 /M outputManaged API (no infra to run)
$1.5 /M outputManaged API (no infra to run)
o1-pro vs GPT-3.5 Turbo specs
| Spec | o1-pro | GPT-3.5 Turbo | Winner |
|---|---|---|---|
| Maker | OpenAI | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 200K tokens | 16K tokens | |
| Input price | $150/M | $0.5/M | |
| Output price | $600/M | $1.5/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 is ~400× cheaper than o1-pro on output tokens ($1.5 vs $600 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 | o1-pro | GPT-3.5 Turbo |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✗ | ✓ |
| 1M+ context window | ✗ | ✗ |
Benchmarks: o1-pro vs GPT-3.5 Turbo
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How o1-pro and GPT-3.5 Turbo score
| Criterion | o1-pro | GPT-3.5 Turbo |
|---|---|---|
| Cost-efficiency | 2.0 | 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
o1-pro Paid
The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide...
GPT-3.5 Turbo 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
o1-pro vs GPT-3.5 Turbo — which is cheaper?
GPT-3.5 Turbo is cheaper on output ($1.5/M vs $600/M).
Which has the larger context window?
o1-pro offers the larger context window (200K tokens).
o1-pro vs GPT-3.5 Turbo — which should I pick in 2026?
Choose GPT-3.5 Turbo for the lower output price ($1.5/M vs $600/M). Choose o1-pro if you need the larger 200K context window.
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