The same models, priced through two pay-per-token gateways. OpenModel lists provider prices and then applies a per-model multiplier; OpenRouter charges its listed price plus a fee when you buy credits. Set your monthly usage to see what each would cost.
Check your client speaks the right API. OpenRouter offers an OpenAI-compatible Chat Completions endpoint. OpenModel does not; it accepts the OpenAI Responses format and the Anthropic Messages format, depending on the model (the "via" line under each price). Tools that only speak Chat Completions need an adapter before OpenModel will work with them.
Client offers only apply to their own client. The Claude Code and Codex discounts are billed only to requests made from those CLIs. Other apps pay the standard multiplier, so leave the offer toggle off unless you will use those clients.
How the OpenModel price is worked out. Effective price = listed price × multiplier, per OpenModel's billing guide ("0.8 = 20% discount"). Some Claude models also carry a Claude Code client offer; offers don't stack with the multiplier, and OpenModel applies whichever is lower. Check your usage log on the first requests to confirm.
How the OpenRouter price is worked out. Listed price from OpenRouter's public models API, plus the credit fee above (an assumption you can change; check OpenRouter's current terms). For open models, OpenRouter routes across several hosts, so the listed price is its default route and can differ by provider.
Not modeled: prompt-caching discounts, which cut the input cost of long chats on both services, and long-prompt price tiers (shown under the OpenModel price where published; monthly figures use the base tier).
Disclaimer. Independent comparison for information only. Not affiliated with, sponsored by, or endorsed by OpenRouter or OpenModel, and not a recommendation of either. Prices are copied automatically from each service's public listings about once a day and may be out of date or wrong; the price you are charged is whatever the provider bills. "Best for" tags are a heuristic from published benchmarks and descriptions, not a quality rating. Verify on the provider's own site before relying on any figure. Product names are trademarks of their owners.