The complete Chromium browser with basic AI functions (page summary, voice mode, shopping assistant, Deep Research) is completely free and has no usage limit (globally available starting October 2, 2025); however, agent tasks that consume quota (such as auto-form filling, booking, and emailing) have limited quota in the free plan.
Model name deepseek-flash (DeepSeek-V4.1-Flash, launched 2026-09-10; the legacy names deepseek-v4-flash / deepseek-v4-flash-vision-exp still work, but are served by V4.1-Flash and billed at the Flash price). Per million tokens (off-peak/peak): cache-hit input US$0.003/0.006, cache-miss input US$0.15/0.30, output US$0.60/1.20. Peak hours are 01:00-04:00 and 06:00-10:00 UTC, Monday to Friday (Chinese public holidays excluded); peak prices are 2x off-peak. ⚠️ Price cut in September 2026: on 9/4 we recorded cache-miss input US$0.22 and output US$0.66 (off-peak). Read directly from the api-docs.deepseek.com English and Chinese pricing pages on 2026-09-25.
API - DeepSeek-V4-Pro
API pay-as-you-go (usage-based)
Model version DeepSeek-V4-Pro-0813. Per million tokens (off-peak/peak): cache-hit input US$0.022/0.044, cache-miss input US$0.66/1.32, output US$1.98/3.96 (read directly from the official site on 2026-09-25; prices unchanged). Concurrency limit 500 (Flash: 2500).
Which one should you pick?
Both offer a free plan. Compare paid tiers against your needs.
DeepSeek has no public paid plan; Comet starts at about US$5 / mo.
FAQ
Is there a free version of Comet?
Yes. The complete Chromium browser with basic AI functions (page summary, voice mode, shopping assistant, Deep Research) is completely free and has no usage limit (globally available starting October 2, 2025); however, agent tasks that consume quota (such as auto-form filling, booking, and emailing) have limited quota in the free plan.
How much does Comet cost?
The cheapest is the plan from Comet named Comet Plus, at about US$5 / mo.
Does Comet support Chinese?
Comet only partially supports Chinese.
Is there a free version of DeepSeek?
Yes. The web version is basically free, but has peak traffic limits.
How much does DeepSeek cost?
The cheapest is the plan from DeepSeek named API - DeepSeek-V4-Flash, at about Official quote (upon inquiry).
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