Processing or generating 500,000 words (approximately 666,500 tokens) with Devstral 2 (2512) (OpenRouter) ranges from $0.0293 (cached input) to $1.466 (full generation).
Quick answer
For 500,000 words, Devstral 2 (2512) (OpenRouter) processes approximately 666,500 tokens. That costs $0.2933 as uncached input, $0.0293 with the modeled cache discount, or $1.466 when generated as output.
Method & trust
The estimate converts the selected English word count with the model tokenizer family, then applies the published input/output price per million tokens. Real prompts vary with code, formatting, language, and system instructions.
You send 500,000 words as prompt context, documentation, or background knowledge.
Devstral 2 (2512) (OpenRouter) drafts a complete 500,000 words article, chapter, or code module.
400,000 words input prompt + 100,000 words output reply.
| Model | Provider | Input Cost (500,000 words) | Cached Input Cost | Output Cost (500,000 words) | Context Limit |
|---|---|---|---|---|---|
| Devstral 2 (2512) (OpenRouter) (Current) | mistral | $0.2933 | $0.0293 | $1.466 | 262,144 |
| GPT-5.3 Codex | openai | $1.12 | $0.112 | $8.96 | 256,000 |
| DeepSeek Coder V2.5 | deepseek | $0.0933 | $0.009331 | $0.1866 | 128,000 |
| Codestral 2501 | mistral | $0.20 | $0.02 | $0.5999 | 256,000 |
| Grok Build 0.1 | xai | $0.6665 | $0.1333 | $1.333 | 256,000 |
| Qwen 2.5 Coder 32B | qwen | $0.1333 | $0.0133 | $0.3999 | 128,000 |
For Devstral 2 (2512) (OpenRouter) (mistral_bpe tokenizer), 500,000 words is approximately 666,500 tokens (an average ratio of 1.33 tokens per word in English). Code, technical vocabulary, and non-English scripts will have higher token densities.
Sending 500,000 words as input costs $0.2933 (or $0.0293 with prompt caching). Generating 500,000 words as output costs $1.466. Output tokens are more expensive because autoregressive token generation requires significantly more computation per token.
Yes! If your input text is part of a repeated context, prompt caching saves 50% to 90% (costing $0.0293). For non-urgent asynchronous batch processing, 24-hour batch queues provide a flat 50% discount across all tokens (costing $0.1466 for input, $0.7332 for output).
At an average human reading speed of 250 words per minute, 500,000 words takes approximately 2000 minutes to read. In contrast, Devstral 2 (2512) (OpenRouter) can process or generate this text in seconds.