Comment by nsoonhui
11 hours ago
I used GitHub Copilot for my VS 2026 development and switched between ChatGPT and Claude. That was before I discovered Claude Code and the Codex app. Copilot was OK for my purposes, and the USD 10 per month fee was enough for my usage.
However, last month they introduced a new pricing model ( I know the old pricing was not sustainable), and my USD 10 was exhausted within days. Because of that, I switched to Claude Code and Codex and have never looked back. Yes, tokens on Claude Code and Codex are subsidized heavily, but let's just enjoy when good things last.
I do feel there is a difference between using Claude via Copilot versus using Claude directly in Claude Code. I'm not sure what Microsoft is doing behind the scenes.
The harness is super important, what tools are available and the system prompts vary from harness to harness.
Anthropic seems to have a modest lead on their harness and models, so it’s a best-of-both-worlds scenario.
> I'm not sure what Microsoft is doing behind the scenes
It’s probably the exact same model, but the tools and the prompts around it are worse, so you get worse results.
Claude in Claude code has been shown to perform persistently worse in evals than claude + a minimal harness.
The harness was absolutely not an issue in my case.
The new pricing model where I got banned from using Opus entirely and half a day of work (with weaker models) consumed the 10$ plan was.
I'm now using a Claude Max subscription and I can get close to the daily limits but I'm fairly happy with the overall plan consumption.
So if you use Claude via Copilot in Zed... You use Zed's harness, I think? What does Copilot do, at that point?
I believe you are using https://github.com/github/copilot-cli or potentially this https://github.com/github/copilot-language-server-release#ag... via the Agent Client Protocol https://github.com/agentclientprotocol/agent-client-protocol which means you are indeed using Copilot's harness
ACP is just a standard that bridges harnesses easily into IDEs, Text Editors, or whatever consumes it (I wrote a TUI that consumes them)
The registry for all the agents (tool harnesses) is here https://github.com/agentclientprotocol/registry if you ever are curious to what Zed or IntelliJ are really hooking into
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It’s providing the inference of Anthropic models
I had a similar experience moving away from Copilot within Zed. Now using the reasonix harness for Deepseek that makes cache hits almost free. And that's with unsubsidized American providers like Digital Ocean or Cloudflare.
I tried using Zed but with local models it constantly breaks on tool calls. I wanted to like it but the smell of vibing is just too much.
Likewise, and that's with state of the art technology. I wish a true self-contained binary for Reasonix Desktop was released, for now I have to settle for providing a Flake.nix environment. It isn't nearly as fickle as Zed, but I wish they leveraged that power of the Go toolset more.
You using models released this year? I hear this complaint a lot, and it's often due to using an old model which is not as good at tool calling as newer models.
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Yep reasonix is an absolute case study of caching. They literally compiled byte level cache in their design and it is insane. i can one shot many workflows, apps in under 0.05 cents.
Nice.
I paid $6 yesterday for DeepSeek V4 Flash on OpenRouter. That's like $120 dollar for a month, and it's not even a good model.
For DS4 it's much cheaper and reputable to use OpenCode Go $10/mo subscription, or directly with DeepSeek API.
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That's quite an achievement, I managed to spend only 2$ on 16 different tasks of v4 pro.
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What is the average monthly token price for daily reasonix use?
For me it's about $5 of work, where I've done equivalent work for about $200.
Same ,I switched to cursor. I told it how to invoke msbuild and it can edit away without needing a native Visual studio plugin.. no problems at all. Target language c++
GitHub Copilot costs have ballooned in recent week, what once took $100 requires $300. I like using Claude with VS Code through Copilot and I feel it’s given me much better code, that I can control the quality. It’s much more transparent than Claude Code. It’s open source but and the IDE interface gives so many more features to have you context and control over whats generated. The increase in cost isn’t purely due to their price increases but also the Opus models agents use more tokens. So I’ve moved to Claude Code and I’m happily still using Opus 4.6. Fable and 4.7 seem to do much larger units of work, go off on tangents and make assumptions that frequently results in slop.
My copilot quota finished in maybe 2-3 prompts with claude 4.8 opus. i was expecting it to suck but not this bad. it was good while it lasted though