GPT 5.5 is a GPT-series model from OpenAI (OpenAI protocol), while Gemini 3.1 Pro Preview is a Gemini-series model from Google (OpenAI protocol). Both are available on TokenDos with pay-per-token billing — no VPN required, just swap the base_url.
| Aspect | GPT 5.5 | Gemini 3.1 Pro Preview |
|---|---|---|
| Vendor | OpenAI | |
| Model Family | GPT | Gemini |
| Protocol | OpenAI | OpenAI |
| Min input price (per 1K tokens) | 0.0000223318 USD/1K tokens | 0 USD/1K tokens |
| Provider nodes | 8 | 2 |
| Official input (per 1M) | $5 | $2 |
| Rate (vs official) | 0.03x | 0.3x |
Rate = site price in CNY / official catalog price = (site price in USD * FX) / catalog price; single value, 1.0x = at official price.
| Provider | Input (per 1K tokens) | Output (per 1K tokens) |
|---|---|---|
| Node #107 | 0.00003 USD | 0.00018 USD |
| Node #290 | 0.005 USD | 0.03 USD |
| Node #294 | 0.0001 USD | 0.0024 USD |
| Node #267 | 0.0001487588 USD | 0.0008925529 USD |
| Node #305 | 0.000215 USD | 0.00129 USD |
| Node #310 | 0.000078 USD | 0.00047 USD |
| Node #316 | 0.0002085 USD | 0.001251 USD |
| Node #103 | 0.0002975176 USD | 0.0017851057 USD |
| Provider | Input (per 1K tokens) | Output (per 1K tokens) |
|---|---|---|
| Node #209 | 0.0000892167 USD | 0.0005353001 USD |
| Node #321 | 0 USD | 0 USD |
Both models are billed per token with no subscription fee. Benchmark them on your real workloads: new TokenDos users get free trial credits and can call GPT 5.5 and Gemini 3.1 Pro Preview under the same API key to compare quality and cost before committing.
View GPT 5.5 details | View Gemini 3.1 Pro Preview details | Live pricing
Which is cheaper, GPT 5.5 or Gemini 3.1 Pro Preview?
On TokenDos both are billed per token, with input pricing from 0.0000223318 USD/1K tokens vs 0 USD/1K tokens. Multiple provider nodes are compared in real time — check the pricing page for live rates, typically well below official pricing.
How do I access both GPT 5.5 and Gemini 3.1 Pro Preview?
Register on TokenDos to get an API key, then call both models under the same key: set ANTHROPIC_BASE_URL=https://api.tokendos.com/anthropic for Anthropic-protocol models and OPENAI_BASE_URL=https://api.tokendos.com/v1 for OpenAI-protocol models.