Which is cheaper, GPT-5.1-Codex-Mini or Hermes 3 70B Instruct?

Hermes 3 70B Instruct, at $0.66 per million tokens against $2.46 for GPT-5.1-Codex-Mini, three parts input to one part output, read on 16 Sept 2026.

Where is each one cheapest?

GPT-5.1-Codex-Mini: $2.46 at Poe. Hermes 3 70B Instruct: $0.66 at Hyperbolic.

Can I buy both from one provider?

Yes. 4 providers sell both: NanoGPT, Eden AI, Kilo Gateway, OpenRouter. The cheapest of them for the two together is NanoGPT.

Which holds more context?

GPT-5.1-Codex-Mini, at 400k tokens against 131k.

GPT-5.1-Codex-Mini vs Hermes 3 70B Instruct.

model vs model · prices as of 16 Sept 2026

GPT-5.1-Codex-Mini takes 3 of 5 rounds against Hermes 3 70B Instruct. Hermes 3 70B Instruct counters on price: $0.66 per million tokens against $2.46, for 131k context instead of 400k.

OpenAIwins 3 rounds

GPT-5.1-Codex-Mini

$2.46/M tokens

cheapest we can explain, at Poe · $0.24 per 1,000 pages

400k context · tool calling · reads images

Poe ↗

Nous Research

Hermes 3 70B Instruct

$0.66/M tokens

cheapest we can explain, at Hyperbolic · $0.09 per 1,000 pages

131k context · open weights

Hyperbolic ↗

List price in (lower wins)

$0.25/M

$0.70/M

List price out (lower wins)

$2/M

$0.70/M

Cheapest we can explain (lower wins)

$2.46/M at Poe

$0.66/M at Hyperbolic

Standard price (lower wins)

$2.75/M

$2.80/M

Cost per 1,000 pages (lower wins)

$0.24

$0.09

Context

400k tokens

131k tokens

Open weights

not stated

yes

Tool calling

yes

Structured output

yes

Reads images

yes

Reasoning

yes

Released

13 Nov 2025

18 Aug 2024

Providers selling it

Price we measure against

OpenRouter

Trains on your prompts (no is better)

not stated

Providers selling both · 4

NanoGPT$2.75 / $1.63
Eden AI$2.75 / $2.80
Kilo Gateway$2.75 / $2.80
OpenRouter$2.75 / $2.80

GPT-5.1-Codex-Mini then Hermes 3 70B Instruct, per million tokens

Go further

open in the compare tool →every price for GPT-5.1-Codex-Mini every price for Hermes 3 70B Instruct

Add a third or fourth model, or switch the weighting, in the tool.

What moved in the last seven days

GPT-5.1-Codex-MiniNous Portal$0.20 / $1.60 $0.25 / $225% dearer · 16 Sept 2026

Frequently asked

Which is cheaper, GPT-5.1-Codex-Mini or Hermes 3 70B Instruct?: Hermes 3 70B Instruct, at $0.66 per million tokens against $2.46 for GPT-5.1-Codex-Mini, three parts input to one part output, read on 16 Sept 2026.
Where is each one cheapest?: GPT-5.1-Codex-Mini: $2.46 at Poe. Hermes 3 70B Instruct: $0.66 at Hyperbolic.
Can I buy both from one provider?: Yes. 4 providers sell both: NanoGPT, Eden AI, Kilo Gateway, OpenRouter. The cheapest of them for the two together is NanoGPT.
Which holds more context?: GPT-5.1-Codex-Mini, at 400k tokens against 131k.

Prices exclude tax and are per million tokens, read 16 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.