Claude Opus 4.5 (2025-11-01) vs Claude Opus 4.6 (2026-02-05)
Claude Opus 4.5 (2025-11-01) vs Claude Opus 4.6 (2026-02-05): Claude Opus 4.5 (2025-11-01) is cheaper by 0% on average. Claude Opus 4.5 (2025-11-01) from Anthropic (200,000-token context, reasoning, tool calls) vs. Claude Opus 4.6 (2026-02-05) from Anthropic (1,000,000-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
01,000,000
400
0128,000
5,000
01,000,000
At this workload, Claude Opus 4.6 (2026-02-05) is 0% cheaper than Claude Opus 4.5 (2025-11-01) — a savings of $0.000000/month ($0.000000/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
model: claude-opus-4-6-20260205
provider: anthropic
fallback:
model: claude-opus-4-5-20251101
provider: anthropic
shadow: { sample_rate: 0.05 } # mirror 5% of traffic to compare quality live| Claude Opus 4.5 (2025-11-01) | Claude Opus 4.6 (2026-02-05) | |
|---|---|---|
| Input price | $5.00/M | $5.00/M |
| Output price | $25.00/M | $25.00/M |
| Context window | 200,000 | 1,000,000 |
| Max output | 64,000 | 128,000 |
| Function calling | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio input | — | — |
| Reasoning | ✓ | ✓ |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Pricing verified | May 12, 2026 | May 12, 2026 |
Cheaper option
Benchmark comparison
Side-by-side public benchmark scores. Greener bar = winner.
Chatbot Arena ELOgeneral
Claude Opus 4.5 (2025-11-01)
1,472
Claude Opus 4.6 (2026-02-05)
1,498