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Observed 2026-06-03 11:12. Prices are USD per 1M tokens (from OpenRouter public pricing). Input: OpenAI o3 $2 / Claude Opus 4.8 $5, output: $8 / $25.
✓ = the mechanically better side per row (cheaper price / longer context). Magnitude only, not a rating.
| Field | OpenAI o3 openai/o3 | Claude Opus 4.8 anthropic/claude-opus-4.8 |
|---|---|---|
| Input priceUSD/1M | $2✓ | $5 |
| Output priceUSD/1M | $8✓ | $25 |
| Cache readUSD/1M | $0.5 | $0.5 |
| Context windowtokens | 200k | 1,000k✓ |
Source: OpenRouter /api/v1/models → collect_prices.py → Source(price)。 · OpenAI o3: openai/o3 · Claude Opus 4.8: anthropic/claude-opus-4.8
Aggregated observations, not predictions. Prices change (observation time noted). © TraceBottle for AI
As observed on 2026-06-03 11:12, input is OpenAI o3 $2 / Claude Opus 4.8 $5 per 1M tokens — OpenAI o3 is cheaper. Output is $8 / $25 — OpenAI o3 is cheaper.
OpenAI o3: 200,000 tokens, Claude Opus 4.8: 1,000,000 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.