Observed 2026-06-03 11:12. Prices are USD per 1M tokens (from OpenRouter public pricing). Input: OpenAI o1 $15 / Mistral Medium 3.5 $1.5, output: $60 / $7.5.
✓ = the mechanically better side per row (cheaper price / longer context). Magnitude only, not a rating.
| Field | OpenAI o1 openai/o1 | Mistral Medium 3.5 mistralai/mistral-medium-3-5 |
|---|---|---|
| Input priceUSD/1M | $15 | $1.5✓ |
| Output priceUSD/1M | $60 | $7.5✓ |
| Cache readUSD/1M | $7.5 | Accumulating… |
| Context windowtokens | 200k | 262.144k✓ |
Source: OpenRouter /api/v1/models → collect_prices.py → Source(price)。 · OpenAI o1: openai/o1 · Mistral Medium 3.5: mistralai/mistral-medium-3-5
Aggregated observations, not predictions. Prices change (observation time noted). © TraceBottle for AI
As observed on 2026-06-03 11:12, input is OpenAI o1 $15 / Mistral Medium 3.5 $1.5 per 1M tokens — Mistral Medium 3.5 is cheaper. Output is $60 / $7.5 — Mistral Medium 3.5 is cheaper.
OpenAI o1: 200,000 tokens, Mistral Medium 3.5: 262,144 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.