DeepSeek launches V4-Pro with agent upgrades and API support
DeepSeek-V4-Pro is now available on app/web and via API, with new peak/off-peak pricing effective Aug 16, 2026.
- V4-Pro and V4-Flash offer low, high, and max reasoning effort levels.
- Native OpenAI Responses API support, optimized for Codex with one-click setup.
- V4 Pro is available via 'Expert Mode' on app/web.
- Off-peak API rates are 50% lower than peak rates.
Developers and enterprises using DeepSeek models can now access a more capable agent-focused model with flexible reasoning and cost-saving off-peak pricing.
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