Claude Opus 5.5 vs Solar Pro 3
Price, context window & benchmark comparison
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Verdict: Solar Pro 3 is 30.5× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix. Claude Opus 5.5 scores higher on the Artificial Analysis Intelligence Index (57.6 vs 7.8). Claude Opus 5.5 has the larger context window (1M vs 131K).
| Claude Opus 5.5 | Solar Pro 3 | |
|---|---|---|
| Input price / 1M | $4.00 | $0.15 |
| Output price / 1M | $20.00 | $0.60 |
| Blended price (3:1) | $8.00 | $0.26 |
| Cached input / 1M | $0.20 | $0.015 |
| Context window | 1M | 131K |
| Max output | 128K | 118K |
| Intelligence index | 57.6 | 7.8 |
| Coding index | — | 16.2 |
| Providers | 11 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-22 | 2026-01-27 |
| Retirement | — | — |
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FAQ
Which is cheaper, Claude Opus 5.5 or Solar Pro 3?
Solar Pro 3 is 30.5× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix.
Claude Opus 5.5 vs Solar Pro 3: which has a bigger context window?
Claude Opus 5.5: 1,000,000 tokens. Solar Pro 3: 131,072 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Opus 5.5 ≈ $18,000, Solar Pro 3 ≈ $600.00.
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