Observed 2026-06-03 11:12. Prices are USD per 1M tokens (from OpenRouter public pricing). Input: Gemini 2.5 Pro $1.25 / GPT-5.5 Pro $30, output: $10 / $180.
✓ = the mechanically better side per row (cheaper price / longer context). Magnitude only, not a rating.
| Field | Gemini 2.5 Pro google/gemini-2.5-pro | GPT-5.5 Pro openai/gpt-5.5-pro |
|---|---|---|
| Input priceUSD/1M | $1.25✓ | $30 |
| Output priceUSD/1M | $10✓ | $180 |
| Cache readUSD/1M | $0.125 | Accumulating… |
| Context windowtokens | 1,048.576k | 1,050k✓ |
Source: OpenRouter /api/v1/models → collect_prices.py → Source(price)。 · Gemini 2.5 Pro: google/gemini-2.5-pro · GPT-5.5 Pro: openai/gpt-5.5-pro
Aggregated observations, not predictions. Prices change (observation time noted). © TraceBottle for AI
As observed on 2026-06-03 11:12, input is Gemini 2.5 Pro $1.25 / GPT-5.5 Pro $30 per 1M tokens — Gemini 2.5 Pro is cheaper. Output is $10 / $180 — Gemini 2.5 Pro is cheaper.
Gemini 2.5 Pro: 1,048,576 tokens, GPT-5.5 Pro: 1,050,000 tokens (observed 2026-06-03 11:12).
Observed 2026-06-03 11:12 (UTC). Source: OpenRouter public pricing (/api/v1/models). Prices change — check each provider's official pricing for the latest. This site publishes only observed values, never predictions.