DeepSeek V4-Pro Review: Benchmarks, Pricing, Verdict (2026)
Honest review of DeepSeek V4-Pro. Current $0.66/$1.98 off-peak pricing, 96.4% SWE-bench Verified on Vals' neutral harness, and where Claude still wins.
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Honest review of DeepSeek V4-Pro. Current $0.66/$1.98 off-peak pricing, 96.4% SWE-bench Verified on Vals' neutral harness, and where Claude still wins.
Quick answer. The DeepSeek V4 API is OpenAI-compatible. Point any OpenAI SDK at https://api.deepseek.com, set your key, and call deepseek-v4-pro (top reasoning/agentic) or deepseek-v4-flash (cheap, fast). Minimal request: curl https://api.deepseek.com/chat/completions -H "Authorization: Bearer $DEEPSEEK_API_KEY" -H "Content-Type:
Quick answer. For pure SWE-bench Pro top score and 1M-context agentic coding, pick Claude Opus 4.7. For longest-horizon swarm runs, pick Kimi K2.6 — open-weight and roughly 8x cheaper. For broad reasoning + Codex/CLI tooling, GPT-5.5. For commodity-priced inference at frontier-adjacent quality, DeepSeek V4 Pro. Choose per workload,