InfraRabbit Nederlands

modelsdev DeepSeek V4.1 Flash Thinking (nano-gpt/deepseek/deepseek-v4.1-flash:thinking)

modelsdev DeepSeek V4.1 Flash Thinking costs USD 0.0537 per 1M input tokens and USD 0.2148 per 1M output tokens (community cross-check, https://models.dev/), verified 2026-10-23 23:39 UTC.

Last verified 2026-10-23T23:39:40+00:00 · Source: https://models.dev/ (community cross-check, waak source modelsdev)
A first-party listing of this model exists and is shown below; this row is the community cross-check.

Price

Input
USD 0.0537 / 1M tokens
Output
USD 0.2148 / 1M tokens
Cached input
USD 0.0011 / 1M
This price since
2026-10-23T17:30:21+00:00
FX used
1 EUR = 1.1205 USD (ECB)
Billing
per_token

Specification

Context window (tokens)
1,000,000
Max output
384,000
Open weights
yes
Reasoning
yes
Source kind
community
Vendor
nano-gpt
Region
global
Listing
listing not verifiable
aggregator / community mirror: no first-party public page to check against
First seen
2026-10-19T22:42:32+00:00
SKU id
llm/modelsdev/nano-gpt/deepseek/deepseek-v4.1-flash:thinking

Other listings of this model

Sources can disagree. The provider's own listing is first-party; LiteLLM, OpenRouter and models.dev are community cross-checks. Differences are shown, not resolved.

SKUSourceInput / 1MOutput / 1Mvs this pageLast verified
llm/azure/deepseek-v4.1-flashazure-retail-openai (first-party) 0.301.20differs differs by +458.7% 2026-10-23T12:28:14+00:00
llm/deepinfra/deepseek-ai/deepseek-v4.1-flashdeepinfra-models (first-party) 0.200.60differs differs by +272.4% 2026-10-23T23:39:40+00:00
llm/modelsdev/above/deepseek-v4.1-flashmodelsdev (community cross-check) 0.1650.66differs differs by +207.3% 2026-10-23T23:39:40+00:00
llm/modelsdev/aiand/deepseek-ai/deepseek-v4.1-flashmodelsdev (community cross-check) 0.300.60differs differs by +458.7% 2026-10-23T23:39:40+00:00
llm/modelsdev/aihubmix/deepseek-v4.1-flashmodelsdev (community cross-check) 0.1550.62differs differs by +188.6% 2026-10-23T23:39:40+00:00
llm/modelsdev/aimlapi/deepseek/deepseek-v4.1-flashmodelsdev (community cross-check) 0.301.20differs differs by +458.7% 2026-10-23T23:39:40+00:00
llm/modelsdev/alibaba-cn/deepseek-v4.1-flashmodelsdev (community cross-check) 0.29751.1902differs differs by +454.1% 2026-10-23T23:39:40+00:00
llm/modelsdev/alibaba-token-plan-cn/deepseek-v4.1-flashmodelsdev (community cross-check) 0.000.00differs 2026-10-23T23:39:40+00:00
llm/modelsdev/alibaba-token-plan/deepseek-v4.1-flashmodelsdev (community cross-check) 0.000.00differs 2026-10-23T23:39:40+00:00
llm/modelsdev/amd/deepseek-v4.1-flashmodelsdev (community cross-check) 0.000.00differs 2026-10-23T23:39:40+00:00
llm/modelsdev/arcee/deepseek/deepseek-v4.1-flashmodelsdev (community cross-check) 0.220.66differs differs by +309.7% 2026-10-23T23:39:40+00:00
llm/modelsdev/azure-cognitive-services/deepseek-v4.1-flashmodelsdev (community cross-check) 0.301.20differs differs by +458.7% 2026-10-23T23:39:40+00:00

Price history (90 days)

1 line, 2026-10-19 to 2026-10-23; values between 0.0342 and 0.14 USD; latest 0.0537 USD.0.025740.056420.08710.11780.1485Oct 19Oct 20Oct 21Oct 22Oct 232026-10-19 UTC: 0.14 USD2026-10-20 UTC: 0.0354 USD2026-10-21 UTC: 0.14 USD2026-10-21 UTC: 0.0342 USD2026-10-22 UTC: 0.09 USD2026-10-23 UTC: 0.0537 USD
Observed (UTC)PriceUSDEUROutput / 1MSnapshot
2026-10-23T17:30:21+00:00USD 0.05370.05370.04790.2148#854
2026-10-22T05:10:22+00:00USD 0.090.090.08010.25#675
2026-10-21T23:07:35+00:00USD 0.03420.03420.03040.1368#620
2026-10-21T05:03:38+00:00USD 0.140.140.12460.42#548
2026-10-20T16:58:47+00:00USD 0.03540.03540.03160.1416#467
2026-10-19T22:42:32+00:00USD 0.140.140.12470.42#34

Each row is a change point: the price held from that moment until the next row. Full history: JSON · CSV.

Changes

SeenKindChange
2026-10-23T17:30:21+00:00
between 2026-10-23 and 2026-10-23		 Price change input, per 1M tokens 0.09 → 0.0537 USD (-40.3%)
2026-10-22T05:10:22+00:00
between 2026-10-21 and 2026-10-22		 Price change input, per 1M tokens 0.0342 → 0.09 USD (+163.2%)
2026-10-21T23:07:35+00:00
between 2026-10-21 and 2026-10-21		 Price change input, per 1M tokens 0.14 → 0.0342 USD (-75.6%)

API: /v1/skus/llm/modelsdev/nano-gpt/deepseek/deepseek-v4.1-flash:thinking

Cite this

Free to reuse under CC BY 4.0 with this credit. The numbers are list prices, not transacted prices.

InfraRabbit (2026). modelsdev DeepSeek V4.1 Flash Thinking [data as of 2026-10-23]. https://infrarabbit.com/llm/modelsdev/nano-gpt/deepseek/deepseek-v4.1-flash:thinking (accessed 2026-10-24). List prices, not transacted prices. CC BY 4.0.
BibTeX
@misc{infrarabbit_llm_modelsdev_nano_gpt_deepseek_deepseek_v4_1_flash_thinking_2026,
  author       = {{InfraRabbit}},
  title        = {modelsdev DeepSeek V4.1 Flash Thinking},
  year         = {2026},
  howpublished = {\url{https://infrarabbit.com/llm/modelsdev/nano-gpt/deepseek/deepseek-v4.1-flash:thinking}},
  note         = {Data as of 2026-10-23; accessed 2026-10-24; list prices, not transacted prices; CC BY 4.0}
}