Claude Fable 5.1 vs DeepSeek V4 Pro 0423
Price, context window & benchmark comparison
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Verdict: DeepSeek V4 Pro 0423 is 17.0× cheaper than Claude Fable 5.1 on a typical 3:1 input/output mix. Claude Fable 5.1 scores higher on the Artificial Analysis Intelligence Index (53.4 vs 30.4). DeepSeek V4 Pro 0423 has the larger context window (1M vs 1M).
| Claude Fable 5.1 | DeepSeek V4 Pro 0423 | |
|---|---|---|
| Input price / 1M | $10.00 | $0.94 |
| Output price / 1M | $50.00 | $1.88 |
| Blended price (3:1) | $20.00 | $1.17 |
| Cached input / 1M | $0.25 | $0.0783 |
| Context window | 1M | 1M |
| Max output | 128K | 384K |
| Intelligence index | 53.4 | 30.4 |
| Coding index | 81.6 | 59.4 |
| Providers | 4 | 16 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-01 | 2026-04-24 |
| Retirement | — | — |
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FAQ
Which is cheaper, Claude Fable 5.1 or DeepSeek V4 Pro 0423?
DeepSeek V4 Pro 0423 is 17.0× cheaper than Claude Fable 5.1 on a typical 3:1 input/output mix.
Claude Fable 5.1 vs DeepSeek V4 Pro 0423: which has a bigger context window?
Claude Fable 5.1: 1,000,000 tokens. DeepSeek V4 Pro 0423: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Fable 5.1 ≈ $45,000, DeepSeek V4 Pro 0423 ≈ $2,819.
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