Claude 3 Opus (2024-02-29) vs Claude Opus 4.5
Claude 3 Opus (2024-02-29) vs Claude Opus 4.5: Claude Opus 4.5 is cheaper by 67% on average. Claude 3 Opus (2024-02-29) from Anthropic (200,000-token context, tool calls) vs. Claude Opus 4.5 from Azure AI Foundry (200,000-token context, reasoning, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.
Side-by-side cost
Live workload comparison
Same workload run through both models. The cheaper one is highlighted.
3,000
0200,000
400
064,000
5,000
01,000,000
At this workload, Claude Opus 4.5 is 67% cheaper than Claude 3 Opus (2024-02-29) — a savings of $7,609/month ($91,313/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
model: claude-opus-4-5
provider: azure-ai-foundry
fallback:
model: claude-3-opus-20240229
provider: anthropic
shadow: { sample_rate: 0.05 } # mirror 5% of traffic to compare quality live| Claude 3 Opus (2024-02-29) | Claude Opus 4.5 | |
|---|---|---|
| Input price | $15.00/M | $5.00/M |
| Output price | $75.00/M | $25.00/M |
| Context window | 200,000 | 200,000 |
| Max output | 4,096 | 64,000 |
| Function calling | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio input | — | — |
| Reasoning | — | ✓ |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Pricing verified | May 12, 2026 | May 12, 2026 |
Benchmark comparison
Side-by-side public benchmark scores. Greener bar = winner.
Chatbot Arena ELOgeneral
Claude 3 Opus (2024-02-29)
1,248
Claude Opus 4.5
1,472