Best forGoogle's current high-end Gemini for long prompts and work where the published intelligence index matters more than the first token.
Per 1M tokens · catalog rate
Gemini 4 Argon and Grok 4.7 answer different constraints. Argon is the newer Google model, with a million-token-class window and the higher published intelligence index of the two. Grok 4.7 is the one that costs less per token on GPTProto and starts the reply sooner in the OpenRouter measurements.
Gemini 4 Argon is $2.40 input and $12.00 output per million tokens on GPTProto. Grok 4.7 is $1.20 input and $3.60 output. Those are the live catalog rates.
Best forGoogle's current high-end Gemini for long prompts and work where the published intelligence index matters more than the first token.
Per 1M tokens · catalog rate
Best forxAI's Grok 4.7 for interactive chat and agent loops where the first token and the output rate dominate the bill.
Per 1M tokens · catalog rate
GPTProto prices are the live text-to-text catalog rates. Latency, context, and benchmarks appear only when the OpenRouter harvest returned them for both models.
curl https://gptproto.com/v1/chat/completions \
-H "Authorization: Bearer $GPTPROTO_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-4-argon",
"messages": [{"role": "user", "content": "Hi"}]
}'curl https://gptproto.com/v1/chat/completions \
-H "Authorization: Bearer $GPTPROTO_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-4.7",
"messages": [{"role": "user", "content": "Hi"}]
}'Prices per 1M tokens from the GPTProto catalog. OpenRouter figures fetched the latest fetch. Not a GPTProto SLA.
GPTProto lists Grok 4.7 at $1.20 per million input tokens and $3.60 per million output tokens. Gemini 4 Argon is $2.40 and $12.00. Against the catalog's provider list rates ($2.00/$6.00 and $4.00/$20.00), Grok is 50% lower on input and 70% lower on output. Output is usually the larger line on a long reply, and it points the same way as input.
A request of 10,000 uncached input tokens and 1,000 output tokens is about $0.0156 on Grok 4.7 and $0.036 on Gemini 4 Argon at these rates. Cache, tools, and retries are not in that figure. If Argon finishes a hard prompt that Grok has to run twice, the cheaper rate can still lose.
The prices are the GPTProto text-to-text catalog rates, the same numbers as the Gemini 4 Argon and Grok 4.7 pages. OpenRouter's own token prices are not used here.
Multiply your expected input and output tokens by the live GPTProto rates. A chat workload and a long-document workload will not pick the same winner, so run both mixes.
Input and output tokens only, at the catalog rate loaded for this page. Cache, tools, and retries are extra.
Test Gemini 4 Argon and Grok 4.7 from the same GPTProto balance, at the rates on their model pages.
Get started. Great for testing the endpoint and trying new models.
The sweet spot for individual developers and small projects shipping to production.
Built for teams running production workloads. Bonus credits stack on already-discounted model pricing.
The cheaper model and the higher-index model are not the same one.
Send the interactive, high-volume calls to Grok. Send the long-context and harder reasoning calls to Argon. Use the same grader, and move a step across only when the log shows the more expensive call succeeding where the cheaper one did not. Both sit on one GPTProto balance.
Do not average a latency-sensitive chat with a long-document task and then pick one winner. Run them as two sets. In the chat set, grade first-token time, completion time, and whether the answer was usable. In the long-context set, grade whether the model used the material at the end of the prompt. Cost per successful answer, not the token rate alone, is the number to keep.
Open either model for the live rate, an API example, and a Playground. If the catalog has moved a rate since you read this sentence, the table on this page and the model page move together, because they read the same catalog. Browse other text models when neither constraint matches the work.
On the live GPTProto rates, yes. Grok is $1.20 input and $3.60 output per million tokens. Argon is $2.40 and $12.00. That is 50% less on input and 70% less on output.
Gemini 4 Argon does. The table lists 1.05M tokens for Argon and 500K tokens for Grok, from the OpenRouter model record. A larger window is capacity, not a lower price.
From the GPTProto catalog for the text-to-text scene, including the provider list rate stored next to the platform rate. Latency, throughput, context, maximum output, and benchmark scores come from the OpenRouter harvest and are labeled with the fetch time. OpenRouter token prices are not shown.
Yes. Gemini 4 Argon and Grok 4.7 each have pricing, an API example, and a Playground. One balance covers both. You change the model name to switch.
Creators and developers share the models and workflows they built with.
For a team already juggling DeepSeek, Kimi, Qwen, or other providers, a shared routing layer can be reasonable if it removes duplicated work and the fallback behavior is tested. GPTProto is one implementation of this approach.

I've been testing GPTProto recently, and it's honestly made my creative workflow much simpler. Instead of paying for multiple subscriptions, I can access several leading AI models from one place.

I turned this single prompt into a cinematic fantasy video using GPTProto. "Continuous 15-second cinematic shot, 4K resolution, hyper-realistic dark fantasy photorealism…"

I challenged myself to create a cinematic AI cooking short in just 15 seconds. I used GPTProto to bring the entire workflow together, from image generation to video, all in one place.

Made with Seedance 2.0 + GPT Image 2 on GPTProto. A Pixar-style commercial with the perfect glow.
What worked for me was pointing the cloud connections at GPTProto so the frontend only sees one endpoint and I just change the model name to swap. I am not rebuilding a connection from scratch every time.
I route the calls through GPTProto so a fallback is a config switch instead of a weekend rewrite when a model disappears. It turns "my default model just got export controlled" from an incident into a config change.

I used to switch between different AI tools just to compare results. Now I just use GPTProto. GPT-5, Claude, Gemini, Kimi, and more — all in one workspace.
I route the calls through GPTProto so the model id and latency land in one place regardless of which provider is behind it. The win is having the log schema consistent across providers.

I created this 15-second cinematic product video with GPTProto using Seedance 2.0, and I was really impressed by how smooth the workflow was.

GPTProto routes the character prompt and shot list to a top model on one API key: 20 minutes … voices it and burns in captions from the same key: 20 minutes.
Text, images, and voice are configured separately. You can keep OpenRouter for text and use GPTProto for visuals.
The call layer underneath the router is GPTProto, so swapping a model does not require provisioning a new provider integration. Changing models becomes cheap enough that the question stops being "should we change."
Compare models, learn API setup, and explore image and video workflows for real projects.
Create images and videos online, or bring text, image, and video models into your app with one API key. Explore discounted rates on selected models.