Cheapest reasoning models.
Prices checked
gpt-oss-20b at TrustedRouter leads 269 models at $0.02 per M tokens, checked .
Top 10
all 392 models- 1
gpt-oss-20b
Resells
TrustedRouter · 131k context · $0.01 in / $0.05 out$0.02/M tokens - 2
Ling 3.0 Flash
OpenRouter · 262k context · $0.02 in / $0.06 out$0.03/M tokens - 3
Qwen3.7 Flash
Regional price
Eden AI · 1M context · $0.02 in / $0.08 out$0.04/M tokens - 4
Nemotron 3.5 Lightning
Resells
NanoGPT · 262k context · $0.05 in / $0.01 out$0.04/M tokens - 5
LFM2.5-24B-A2B
NanoGPT · 128k context · $0.05 in / $0.03 out$0.04/M tokens - 6
Nemotron 3.5 Content Safety
ResellsNanoGPT · 131k context · $0.05 in / $0.03 out$0.04/M tokens - 7
Nex N2.5 Mini
OpenRouter · 262k context · $0.03 in / $0.10 out$0.04/M tokens - 8
Qwen3.5-9B
Regional priceEden AI · 262k context · $0.04 in / $0.07 out$0.05/M tokens - 9
DeepSeek V4.1 Flash 1017
Runs it themselvesEngy · 1M context · $0.03 in / $0.12 out
$0.05/M tokens - 10
Qwen Turbo
Regional price
Alibaba Cloud (China) · 1M context · $0.04 in / $0.09 out$0.05/M tokens
How we count
A reasoning model works through a problem before it answers, and you pay for that thinking as output tokens, so the output price matters more here than anywhere else. 269 qualify, from $0.02. Prices are per million tokens, blended 3 in : 1 out, at each provider's standard rate.
A price below the maker's is listed only when the provider says why.
- Resells
- The provider sells another company's endpoint, at a margin of its own or at the maker's price.
- Regional price
- A price list for one region, lower than the international one. A region, not a deal.
- Runs it themselves
- The provider runs the open weights on hardware of its own, so the price is its own rather than a resale.
Frequently asked
- What is the cheapest of the reasoning models right now?
- gpt-oss-20b at TrustedRouter, $0.01 in and $0.05 out per million tokens, read on 31 Oct 2026.
- Which lab shows up most in this ranking?
- Alibaba Cloud trained 3 of the top 10 models here.
- How is this ranked, and how current is it?
- Every row is the cheapest price for that model with an account behind it: the maker's own, a price below it with a published reason, or a price at or above it. A price below the maker's own with nothing to explain it is listed on the model's page and not ranked. Prices are read every 3 days from 237 providers' public catalogs, per million tokens and blended 3 in : 1 out. Last refresh: 31 Oct 2026.