DeepSeek

DeepSeek V3.1 Terminus

Type
language model
Context
164K tokens
Max output
66K
Released
2 August 2025
Knowledge cutoff
March 2025
API string
deepseek-ai/DeepSeek-V3.1-Terminus
Weights
open

Prices by provider

Provider Input, $ per 1M Output, $ per 1M In our data since
Kilo Code $0.21 $0.79 31 Jul 2026
NanoGPT $0.25 $0.7 31 Jul 2026
alibaba-cn $0.27 $1 31 Jul 2026
novita-ai $0.27 $1 31 Jul 2026
siliconflow-cn $0.27 $1 31 Jul 2026
Abacus.AI $0.27 $1 31 Jul 2026
DeepInfra $0.27 $1 31 Jul 2026
Helicone $0.27 $1 31 Jul 2026
Novita AI $0.27 $1 31 Jul 2026
OpenRouter $0.27 $1 31 Jul 2026
SiliconFlow $0.27 $1 31 Jul 2026
Vercel $0.27 $1 31 Jul 2026
Fireworks AI $0.56 $1.68 1 Aug 2026

Only the base tier and only per-token prices are shown. Batch, discounted and cached rates, as well as prices per image or per second of video, do not go into this table: they cannot stand in the same column as a price per million tokens.

The date in the last column is the day this price first entered our collection. The price may well be older: before that day we simply were not recording it. It has not changed since — otherwise a new row with a new date would stand in its place.

Measurement results

Task set Result Run conditions Measured by
Arena Score in Russian 1,426.56 1,393–1,460
Arena Score in English 1,422.96 1,409–1,437
Arena Score, overall 1,417.25 1,408–1,427
Arena Score, programming 1,406.59 1,386–1,427
Arena Score, hard prompts 1,405.93 1,393–1,419
Arena Score, creative writing 1,405.52 1,378–1,433
Arena Score, mathematics 1,398.82 1,361–1,437
Arena Score, long queries 1,396.19 1,377–1,416
Arena Score, multi-turn dialogue 1,387.42 1,365–1,410
Arena Score, instruction following 1,379.94 1,362–1,398