Compare DeepSeek V4 Pro 0423 from DeepSeek and GPT Chat Latest from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.


DeepSeek V4 Pro 0423 and GPT Chat Latest are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
DeepSeek V4 Pro 0423, from DeepSeek, has a 1,048,576-token context window and is priced at $0.45/M tokens input, $3.48/M tokens output on OpenRouter.
GPT Chat Latest, from OpenAI, has a 400,000-token context window and is priced at $5/M tokens input, $30/M tokens output on OpenRouter.
| Attribute | DeepSeek V4 Pro 0423 | GPT Chat Latest |
|---|---|---|
| Input price | $0.45/M tokens | $5/M tokens |
| Output price | $3.48/M tokens | $30/M tokens |
| Context window | 1,048,576 tokens | 400,000 tokens |
| Intelligence Index | 30.1 | Not available |
| Coding Index | 58.7 | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | 1.08 s | 1.23 s |
| Throughput (p50) | 35.0 tok/s | 76.0 tok/s |
Benchmark data updated
DeepSeek V4 Pro 0423 is cheaper than GPT Chat Latest on OpenRouter: DeepSeek V4 Pro 0423 costs $0.45/M tokens input and $3.48/M tokens output, while GPT Chat Latest costs $5/M tokens input and $30/M tokens output.
DeepSeek V4 Pro 0423 has the longer context window at 1,048,576 tokens, compared with 400,000 tokens for GPT Chat Latest.
GPT Chat Latest is faster on OpenRouter, generating a median 76.0 tokens per second compared with 35.0 tokens per second for DeepSeek V4 Pro 0423.