Short answer, then the detail.
For Long-document analysis and report writing; Engineering teams editing shared code, Claude is the more direct fit. For Budget-sensitive developers; Chinese writing and translation, DeepSeek gets there with less fighting.
Both have free tiers, so cost only separates them once you hit the limits. They're in the same context range (Up to 1M tokens, varying with the selected model (checked 2026-10-29)), so document size won't be what decides it.
| Dimension | Claude | DeepSeek |
|---|---|---|
| Free tier | Yes | Yes |
| Pricing | Free $0; Pro $20/mo ($17/mo on annual billing, $200 up front); Max $100-$200/mo; Team $20/seat/mo annual ($25 monthly); Enterprise $20/seat/mo from 20 seats (checked 2026-10-29) | Web and app free; API list price deepseek-flash CNY 1 / 2 per million input tokens (off-peak / peak) and CNY 4 / 8 output; deepseek-v4-pro CNY 4.5 / 9 input and CNY 13.5 / 27 output (checked 2026-10-29) |
| Context window | Up to 1M tokens, varying with the selected model (checked 2026-10-29) | 1M tokens of context; up to 384K tokens of output (checked 2026-10-29) |
| Platforms | Web, iOS, Android, macOS, Windows | Web, iOS, Android, macOS, Windows |
| Best for | Long-document analysis and report writing; Engineering teams editing shared code; Researchers working through dense papers | Budget-sensitive developers; Chinese writing and translation; Private or on-premise deployment |
| Availability | No mainland China edition; reaching it from there needs a proxy or VPN (checked 2026-10-29). | Directly reachable inside mainland China with no proxy, and a China edition exists (checked 2026-10-29). |
Long-document analysis and report writing; Engineering teams editing shared code; Researchers working through dense papers. Its strongest point: Keeps a long PDF or repository coherent across many follow-up turns. Watch out for: Free tier runs out of messages halfway through real work.
Budget-sensitive developers; Chinese writing and translation; Private or on-premise deployment. Its strongest point: Publishes open weights you can download and self-host. Watch out for: Almost no multimodal support for images or audio.
Running both is not wasteful here: one earns its keep on retrieval and tool use, the other on long text you intend to keep.
Claude if you want Long-document analysis and report writing. DeepSeek if Budget-sensitive developers. Neither has a learning curve worth worrying about past the first day.
Yes — both have free tiers, and the pair covers more ground than either alone.
They're in the same context range (Up to 1M tokens, varying with the selected model (checked 2026-10-29)), so document size won't be what decides it.