Compare DeepSeek V3.2 Exp from DeepSeek and GPT-5.2 Pro 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 V3.2 Exp and GPT-5.2 Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
DeepSeek V3.2 Exp, from DeepSeek, has a 163,840-token context window and is priced at $0.27/M tokens input, $0.41/M tokens output on OpenRouter.
GPT-5.2 Pro, from OpenAI, has a 400,000-token context window and is priced at $21/M tokens input, $168/M tokens output on OpenRouter.


| DeepSeek V3.2 Exp | GPT-5.2 Pro | |
|---|---|---|
| Input price | $0.27/M tokens | $21/M tokens |
| Output price | $0.41/M tokens | $168/M tokens |
| Context window | 163,840 tokens | 400,000 tokens |
| Intelligence Index | Not available | Not available |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | 2.45 s | 3.96 s |
| Throughput (p50) | 14.0 tok/s | 9.0 tok/s |
DeepSeek V3.2 Exp is cheaper than GPT-5.2 Pro on OpenRouter: DeepSeek V3.2 Exp costs $0.27/M tokens input and $0.41/M tokens output, while GPT-5.2 Pro costs $21/M tokens input and $168/M tokens output.
GPT-5.2 Pro has the longer context window at 400,000 tokens, compared with 163,840 tokens for DeepSeek V3.2 Exp.
DeepSeek V3.2 Exp is faster on OpenRouter, generating a median 14.0 tokens per second compared with 9.0 tokens per second for GPT-5.2 Pro.