Deep Infra model API pricing
Deep Infra DeepSeek-V3.1-Terminus API pricing
Deep Infra DeepSeek-V3.1-Terminus API pricing is $0.270 per 1M input tokens and $0.950 per 1M output tokens in the ByteCosts provider pricing index. For an equal 1M input plus 1M output token plan, the listed token cost is $1.22. Context window: 160. Prompt cache prices: read $0.270, write -, 1h write - per 1M tokens. The confidence grade is A+: Read from the provider's official pricing page. The source was last checked 2026-07-19. At a reference workload of 1M input tokens and 250K output tokens per month, the listed token cost is $0.508 / month. This is a planning estimate; real invoices can differ because taxes, discounts, commitments, gateway fees, and non-token charges are excluded.
Open the pricing index - Deep Infra / DeepSeek-V3.1-Terminus →
Pricing snapshot
| Field | Value |
|---|---|
| Provider | Deep Infra |
| Model | DeepSeek-V3.1-Terminus |
| Input / 1M tokens | $0.270 |
| Output / 1M tokens | $0.950 |
| Cache read / 1M tokens | $0.270 |
| Cache write / 1M tokens | - |
| Cache write 1h / 1M tokens | - |
| Context window | 160 |
| Reference monthly workload | $0.508 / month |
The reference workload is 1M input tokens plus 250K output tokens per month. It excludes taxes, discounts, gateway fees, and non-token charges.
Reference workload examples
Each example is pure arithmetic from this committed record's input and output token prices. The assumptions are shown inline.
| Example | Assumed monthly tokens | Estimated token cost |
|---|---|---|
| Light reference | 1M input + 250K output tokens/month | $0.508 / month |
| Production reference | 10M input + 2.5M output tokens/month | $5.08 / month |
| Heavy reference | 100M input + 25M output tokens/month | $50.75 / month |
Examples exclude taxes, discounts, commitments, gateway fees, cache effects, and non-token charges unless those charges are part of the committed token price record.
When this model is cost-effective
DeepSeek-V3.1-Terminus ranks 9 of 20 Deep Infra records by combined list price ($1.22 for 1M input plus 1M output tokens). That puts it in the middle third of this provider's committed records.
Cached input reads are listed at $0.270 per 1M tokens, 100% of the fresh input rate, so repeated cached prompts have a lower committed input-token cost than fresh prompts.
The committed context window is 160; use that as the only long-context signal on this page, not as a quality or latency claim.
Cheaper alternatives
These records have a lower committed input+output list price than this page's record. Same-provider records and same-model cross-provider records are preferred when available.
| Record | Input / 1M | Output / 1M | Combined / 1M + 1M | Detail page |
|---|---|---|---|---|
| Deep Infra DeepSeek-V4-Flash | $0.100 | $0.200 | $0.300 | /tools/ai-provider-pricing/deepinfra--deepseek-v4-flash |
| Deep Infra DeepSeek-V3.2 | $0.260 | $0.380 | $0.640 | /tools/ai-provider-pricing/deepinfra--deepseek-v3.2 |
| Deep Infra Qwen3-VL-30B-A3B-Instruct | $0.150 | $0.600 | $0.750 | /tools/ai-provider-pricing/deepinfra--qwen3-vl-30b-a3b-instruct |
Evidence and freshness
ByteCosts grades this row A+. Read from the provider's official pricing page. The record was first tracked on 2026-05-30 and last checked on 2026-07-19.
The source URL is kept with the record so readers can verify the provider page before making a purchasing or architecture decision. Prices change often, so quote the last-checked date with any copied number.
Watch-outs
- No hidden-cost flags are attached to this source-backed record.
Price history
| When | Field | Was | Now | Change |
|---|---|---|---|---|
| 2026-05-30 | tracking | not tracked | current row | no changes recorded |
Frequently asked questions
Is DeepSeek-V3.1-Terminus free to use?
This ByteCosts row is not marked free. Use the listed token rates and verify the provider source for discounts, commitments, and account-specific terms.
Does this page include all possible charges?
No. The page focuses on source-backed token pricing and known cache/context fields. It does not include taxes, enterprise commitments, gateway markups, storage, retrieval, fine-tuning, or platform fees unless those charges are present in the source-backed row.
Deep Infra DeepSeek-V3.1-Terminus API pricing. ByteCosts. Updated 2026-07-19. https://bytecosts.com/tools/ai-provider-pricing/deepinfra--deepseek-v3.1-terminus/