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Observed 2026-06-03 11:12. Prices are USD per 1M tokens (from OpenRouter public pricing). Input: Claude Sonnet 4 $3 / Claude Haiku 4.5 $1, output: $15 / $5.
✓ = the mechanically better side per row (cheaper price / longer context). Magnitude only, not a rating.
| Field | Claude Sonnet 4 anthropic/claude-sonnet-4 | Claude Haiku 4.5 anthropic/claude-haiku-4.5 |
|---|---|---|
| Input priceUSD/1M | $3 | $1✓ |
| Output priceUSD/1M | $15 | $5✓ |
| Cache readUSD/1M | $0.3 | $0.1✓ |
| Context windowtokens | 1,000k✓ | 200k |
Source: OpenRouter /api/v1/models → collect_prices.py → Source(price)。 · Claude Sonnet 4: anthropic/claude-sonnet-4 · Claude Haiku 4.5: anthropic/claude-haiku-4.5
Aggregated observations, not predictions. Prices change (observation time noted). © TraceBottle for AI
As observed on 2026-06-03 11:12, input is Claude Sonnet 4 $3 / Claude Haiku 4.5 $1 per 1M tokens — Claude Haiku 4.5 is cheaper. Output is $15 / $5 — Claude Haiku 4.5 is cheaper.
Claude Sonnet 4: 1,000,000 tokens, Claude Haiku 4.5: 200,000 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.