Cheapest for a need

Models that cost nothing

The upstream publishes a price of zero for both what you send and what it writes. No margin is added to zero.

Nothing to rank by price, so the largest context windows come first.

free worlds: 20
worlds charted: 464

The 10 with the largest context

1Lyria 3 Clip PreviewGoogle · google/lyria-3-clip-preview1M contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
2Lyria 3 Pro PreviewGoogle · google/lyria-3-pro-preview1M contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
3Inkling Small (free)Thinking Machines · thinkingmachines/inkling-small:free1M contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
4Inkling (free)Thinking Machines · thinkingmachines/inkling:free1M contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
5Nemotron 3 Ultra (free)NVIDIA · nvidia/nemotron-3-ultra-550b-a55b:free1M contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
6Nemotron 3.5 Lightning (free)NVIDIA · nvidia/nemotron-3.5-lightning:free1M contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
7Space Bunny AlphaStealth · stealth/space-bunny-alpha1M contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
8Dots3-Note Preview (free)Dots Studio · dots-studio/dots-3-note-preview:free512k contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
9Gemma 4 26B A4B (free)Google · google/gemma-4-26b-a4b-it:free262k contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it
10Gemma 4 31B (free)Google · google/gemma-4-31b-it:free262k contextTry it
A messageFree
In / 1Mfree
Out / 1Mfree
Try it

10 more qualify. Every price is on the price list.

What this list does not say

Price is the only thing it ranks. Nothing here scores how well a world does a task, so the cheapest is not a claim about the best. Try two in chat before you build on one; chat needs no key. A world with no published price is never listed here.