# Copilot Fusion vs 5 AI Coding Agents in 2026

> GitHub made Copilot Fusion, a layer that routes each coding task across several models, generally available on October 28, 2026. Here is how it compares with Claude Code, Cursor, OpenAI Codex, Devin Fusion and Google's Antigravity CLI.

By Arthur R. · Published 2026-10-29 · Updated 2026-10-29 · 9 min read · https://innvesti.com/reports/github-copilot-fusion-vs-ai-coding-agents-2026/

## Quick answer

GitHub Copilot Fusion, generally available since October 28, 2026, routes each coding prompt to one model or several instead of making the developer pick. On Artificial Analysis's Coding Agent Index it scored 60, within two points of Claude Code with Opus 5.5 at Max, at about half the measured cost per task. Claude Code, Cursor, Codex and Devin Fusion remain stronger choices for specific workflows.

## Key takeaways

- Copilot Fusion is an orchestration layer, not a model: per GitHub, it picks one of three patterns per task (single model, cascade from a cheap model to a stronger one, or critique where a second model reviews the first) at Standard, High or Max effort.
- In the Artificial Analysis Coding Agent Index, as reported by VentureBeat, Fusion Max scored 60 against about 62 for Claude Code with Opus 5.5 Max, at $5.59 per task versus $11.42.
- GitHub's claim that Fusion Max finished about 40% faster than Claude Code is GitHub's own; VentureBeat reports Artificial Analysis did not publish timing data to confirm it.
- Fusion bills each model it uses at that model's standard rate, with a temporary 30% discount on model costs for paid Copilot plans, so cost is metered rather than a flat price.
- Routing is now a feature in several tools: Cursor routes on Teams and Enterprise only, Cognition's Devin Fusion pairs a lead model with a cheaper sidekick, and Claude Code and Codex stay tied to one vendor's models.

## Key figures

- **Oct 28, 2026** — Copilot Fusion generally available (GitHub changelog; VentureBeat)
- **60 vs ~62** — Coding Agent Index score, Fusion Max vs Claude Code with Opus 5.5 Max (Artificial Analysis, via VentureBeat)
- **$5.59 vs $11.42** — Average cost per task, Fusion Max vs Claude Code with Opus 5.5 (Artificial Analysis, via VentureBeat)
- **30%** — Temporary discount on model costs when paid Copilot plans use Fusion (GitHub changelog)

## Ranked

1. **GitHub Copilot Fusion** — Best for teams already on Copilot who want cost control without choosing models. https://github.blog/changelog/2026-10-28-route-and-orchestrate-models-with-github-copilot-fusion/
2. **Claude Code** — Best for the highest measured quality on hard tasks. https://claude.com/pricing
3. **Cursor** — Best for an editor-first workflow with its own models. https://cursor.com/docs/models
4. **OpenAI Codex** — Best for ChatGPT subscribers who want coding bundled in. https://learn.chatgpt.com/docs/pricing
5. **Devin Fusion (Cognition)** — Best for a planner-plus-executor agent approach. https://www.eesel.ai/blog/devin-fusion
6. **Antigravity CLI (Google)** — Best for developers in Google's ecosystem. https://virtualizationreview.com/articles/2026/05/19/google-moves-gemini-cli-into-antigravity-cli-as-agent-platform-expands.aspx

## Comparison

| Tool | How it picks models | Pricing model | Independent index result | Best for |
| --- | --- | --- | --- | --- |
| GitHub Copilot Fusion | Routes per task: single, cascade or critique | Each model at its standard rate; 30% temporary discount on paid plans | 60 (Fusion Max), $5.59 per task | Copilot teams wanting automatic routing |
| Claude Code | You pick; Anthropic models | Claude plans, Pro $20 to Max from $100, plus API-rate extra usage | About 62 with Opus 5.5 Max, $11.42 per task | Hardest tasks |
| Cursor | Auto modes; Router on Teams and Enterprise only | Plus $8 to Ultra $200; third-party models at API price | None found | Editor-first developers |
| OpenAI Codex | You pick; OpenAI models | ChatGPT plans from Free; Plus $20; Pro from $100 | None found | ChatGPT subscribers |
| Devin Fusion | Lead model plus cheaper sidekick, with escalation | Devin plans: Free, Pro $20, Max $200, Teams $80 plus $40 per seat | About 62, $8.00 per task | Planner-plus-executor workflows |
| Antigravity CLI | Gemini models; no routing found | Unclear across sources | None found | Google ecosystem |

## FAQ

### What is GitHub Copilot Fusion?

Copilot Fusion is a model option in GitHub Copilot, generally available since October 28, 2026. Instead of choosing a model, you choose an effort level (Standard, High or Max) and Fusion routes each task to one model or coordinates several, using single, cascade or critique patterns.

### Is Copilot Fusion better than Claude Code?

On the Artificial Analysis Coding Agent Index as reported by VentureBeat, Fusion Max scored 60 against about 62 for Claude Code with Opus 5.5 Max, at roughly half the cost per task. Claude Code scored higher overall and on FrontierCode, so neither is strictly better.

### How much does Copilot Fusion cost?

GitHub says you pay each underlying model's standard rate for the calls Fusion makes, and paid Copilot plans get a limited-time 30% discount on model costs. VentureBeat adds that eligible Enterprise Cloud customers can pay metered usage from an enterprise budget.

### Which Copilot clients support Fusion?

VS Code, the GitHub Copilot app, Copilot CLI and JetBrains IDEs, with other clients listed as coming soon.

### Does Cursor have an equivalent to Fusion?

Partly. Cursor's Auto has Cost, Balance and Intelligence modes, but its docs say Balance and Intelligence work through Cursor Router on Teams and Enterprise, and individual plans have Cost mode only.

### Is the 40% speed advantage real?

GitHub reports Fusion Max finished about 40% faster than the Claude Code configuration, but VentureBeat notes that Artificial Analysis did not publish timing data, so the figure is unconfirmed.

## How we evaluated

We started from GitHub's October 28, 2026 changelog and checked the benchmark and pricing details against VentureBeat's independent report. We then chose the coding agents a developer would realistically weigh against Fusion and read each vendor's pricing or documentation page on October 29, 2026. Where a vendor page was unavailable, we say so and attribute the figure to a secondary source. We did not test any tool hands-on. Benchmark numbers come from a single Artificial Analysis run reported by VentureBeat, and Artificial Analysis's own public page did not show these values when we opened it. Rankings weigh independent measured quality and cost, then pricing transparency, then fit across team sizes.

- Independent benchmark quality and cost per task, where available
- How the tool chooses or routes between models
- Pricing transparency and predictability
- Client and team-policy support

## Sources

- [GitHub Changelog — Route and orchestrate models with GitHub Copilot Fusion (Oct 28, 2026)](https://github.blog/changelog/2026-10-28-route-and-orchestrate-models-with-github-copilot-fusion/)
- [VentureBeat — GitHub Copilot Fusion mixes models to achieve near-Opus 5.5 coding performance at half the per-task cost](https://venturebeat.com/orchestration/github-copilot-fusion-mixes-models-to-achieve-near-opus-5-5-coding-performance-at-half-the-per-task-cost)
- [Claude — Pricing](https://claude.com/pricing)
- [Cursor Docs — Models and pricing](https://cursor.com/docs/models)
- [OpenAI — ChatGPT and Codex pricing](https://learn.chatgpt.com/docs/pricing)
- [eesel.ai — Devin Fusion, what Cognition's new multi-model harness does](https://www.eesel.ai/blog/devin-fusion)
- [Devin — Pricing](https://devin.ai/pricing)
- [Virtualization Review — Google moves Gemini CLI into Antigravity CLI (May 19, 2026)](https://virtualizationreview.com/articles/2026/05/19/google-moves-gemini-cli-into-antigravity-cli-as-agent-platform-expands.aspx)