Models
Use them in the browser, or call them through one OpenAI-compatible API key. No card needed.
Left right now
Site-wide calls
Free-model calls per 5 hours, shared by all accounts
About 70% left
Frees up as time passes
How these figures are worked out
In dollars, counted from the visible text sent and received in each call.“One reply, about” is the average of recent calls, counting a call as at least 250 characters. Long conversations and coding tools send more text in each call and cost more. “Per million characters” is the price of returned text; sent text is charged at 20% of it, and the part the provider bills as cached at 10% of the sent price.
This week's model changes
This week's changes
- Removed
- deepseek-v4.1-flashgemini-3.1-pro-previewminimax-m2.7qwen3.5-397b-a17bqwen3.8-flash-next
No successful replies
Every model answered at least once this week.
Which one to pick
Start with a fast general model. Move to a larger reasoning or coding model when the first answer is not good enough.
Use the cheap one for
- Classification, tagging, yes-or-no questions.
- Rewriting, summarising, translating short text.
- Anything you are going to run in a loop over many rows.
- Prototyping, while you are still changing the prompt every two minutes.
Use the careful one for
- Multi-step reasoning where a wrong middle step ruins the answer.
- Code that has to run, not code that has to look right.
- Long instructions with several constraints at once.
- The final pass, after the cheap one got you most of the way.
A practical pattern: draft with a free model, and only send the cases it got wrong to Claude, GPT or another big model. Free models are not charged, so your balance goes only where a big model is needed.
Pricing
The basics are free. Big models, premium pictures and video are charged by usage.
Free
$0
- Free models: 30 calls every 5 hours
- 10 pictures a day on the basic drawing models, with a small onomeo mark in the bottom-right corner
- OpenAI-compatible API: one key for Cline, OpenCode, SillyTavern and other tools
- API answers end with the line "— via onomeo.com"
- No credit card required
Free models from Google, Zhipu AI, Mistral AI, DeepSeek and more
Pay as you go
One payment. What you pay becomes your balance.
- Big modelsUnlocks every big modelIncluding GPT-6.1 Sol, GPT-6 Astra, Gemini 4 Argon, Muse Wonder 1.0, Mistral Large 4 and more, charged to the balance by actual usage.In a coding tool, about1,000calls on the coding line, DeepSeek FlashThe coding line count is on the average of its recent calls. A big model in a coding tool is sent the whole conversation again with every call and usually costs far more than the coding line; before the first large call the site states the estimated cost in the tool and charges nothing.
- Premium picturesAbout166pictures from GPT Image 2.5About 55 from Nano Banana Pro
- VideoOpens with a single top-up of $10 or moreMade from text, with sound
Each line is an estimate for that use alone. They all draw on one balance, charged by actual usage. What a coding tool costs follows the length of the conversation.
- The balance never expires
- No automatic renewal
- For 35 days after payment: 90 free-model calls every 5 hours
- While the account has a balance: generated images carry no onomeo mark
- While the account has a balance: API answers come without the "— via onomeo.com" line
- The DeepSeek coding line
You can also pay with PayPal (through Ko-fi; use the email you sign in with here)
Payments are not refunded. See the Terms of Use.
About how far $5 goes
Estimated from the average length of recent calls, counting a call as at least 250 characters.
- Gemini 4 Argon1,000replies
- GPT-6.1 Sol370replies
- Claude Sonnet 5.5400replies
- Claude Opus 5.5110replies
- GPT-6 Luna290replies
- Grok 4.7340replies
- DeepSeek Flash1,000replies
- GPT-6 Astra65replies
- Claude Fable 5.192replies
- GLM-5.3130replies
- Kimi K3400replies
These counts assume short questions and answers. Long inputs and coding tools use more per request.
Billing rules
Free models count calls; big models are charged by usage
- Claude, GPT and other big models are charged to your balance for the visible text you send and the text that comes back. Each model has its own price, listed on the Pricing page.
- A model’s own thinking is not charged. A reply that comes back empty is neither counted as a call nor charged.
- On big models an image is charged as 300 characters, once per conversation in the web chat.
- On big models, the text read from a file you attach is charged like the rest of the message, each time it goes with a question.
- Sign in with an email code, Google, GitHub or Discord. No password and no card needed.
- Up to 12 requests a minute per key.
- Free models: up to 30 calls in each 5-hour window per account, or 90 for 35 days after a payment. A long message counts as several calls: one for every 50,000 counted characters, and one more for any part left over. Characters are counted across the whole conversation sent, earlier messages included; each Chinese character counts as one, every 4 other characters as one.
Where the models come from The free-route models run on the free tier each provider offers; onomeo puts them behind one key and keeps checking that they answer. Big models such as Claude and GPT are paid for by onomeo, within a shared daily budget.Read the FAQ
Buying
Sign in, then select Top up. Waffo Pancake, our merchant of record, processes the payment, and the balance is added to the account you are signed in with. See the Terms of Use for details.
Frequently asked questions
What is the balance?
The amount you pay becomes your balance, shown in dollars. Claude, GPT and other big models and the DeepSeek coding line are charged to it by usage. Free models do not touch the balance; they are limited by calls. The balance never expires and nothing renews automatically; top up again whenever it runs out.
How much does one reply cost?
It is counted from the visible text sent and received in that call, and each model has its own price, listed above. The web chat shows about how much a message will cost before you send it.
What happened to credits?
The site no longer uses credits. Free models are limited by calls and the big models are charged in dollars; credits given out earlier are no longer in use.
onomeo is in public beta, and feedback is welcome. onomeo is an independent product and is not affiliated with any model provider.