Compare Claude Fable 5 from Anthropic and DeepSeek V4 Pro 0423 from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.


Claude Fable 5 and DeepSeek V4 Pro 0423 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Fable 5, from Anthropic, has a 1,000,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.
DeepSeek V4 Pro 0423, from DeepSeek, has a 1,048,576-token context window and is priced at $0.2161/M tokens input, $0.4322/M tokens output on OpenRouter.
| Attribute | Claude Fable 5 | DeepSeek V4 Pro 0423 |
|---|---|---|
| Input price | $10/M tokens | $0.2161/M tokens |
| Output price | $50/M tokens | $0.4322/M tokens |
| Context window | 1,000,000 tokens | 1,048,576 tokens |
| Intelligence Index | 49.6 | 30.1 |
| Coding Index | 76.5 | 58.7 |
| Agentic Index | 50.7 | Not available |
| Latency (p50) | 2.84 s | 1.48 s |
| Throughput (p50) | 53.0 tok/s | 38.0 tok/s |
Benchmark data updated
DeepSeek V4 Pro 0423 is cheaper than Claude Fable 5 on OpenRouter: DeepSeek V4 Pro 0423 costs $0.2161/M tokens input and $0.4322/M tokens output, while Claude Fable 5 costs $10/M tokens input and $50/M tokens output.
DeepSeek V4 Pro 0423 has the longer context window at 1,048,576 tokens, compared with 1,000,000 tokens for Claude Fable 5.
Claude Fable 5 is faster on OpenRouter, generating a median 53.0 tokens per second compared with 38.0 tokens per second for DeepSeek V4 Pro 0423.
Claude Fable 5 scores higher on coding, with an Artificial Analysis Coding Index of 76.5 compared with 58.7 for DeepSeek V4 Pro 0423.