Coding · Head-to-head
GPT-5.5 vs Devin
GPT-5.5 vs Devin: pricing, features, and which to pick in 2026.
The verdict
Pick GPT-5.5 if…
- →you need a genuinely free option
- →overall capability matters more than price (AI Score 9.4 vs 8.5)
- →you want our editor's pick for this category
- →your primary use case is developers and teams needing a frontier reasoning model for agentic coding workflows and large-codebase context handling.
Pick Devin if…
- →your primary use case is engineering teams that want to hand off well-scoped coding tasks, like migrations, bug fixes, and boilerplate, to an autonomous agent working independently.
Side-by-side specs
| Spec | GPT-5.5 | Devin |
|---|---|---|
| Category | Coding | Coding |
| Pricing model | paid | paid |
| Headline pricing | API: $5/$30 per 1M tokens (in/out). ChatGPT Plus $20/mo, Pro $200/mo | Teams ~$500/user/mo, Enterprise custom |
| Free tier | No free API tier. Free ChatGPT users get GPT-4o, not GPT-5.5. | — |
| AI Score | 9.4/10 | 8.5/10 |
| Best for | Developers and teams needing a frontier reasoning model for agentic coding workflows and large-codebase context handling. | Engineering teams that want to hand off well-scoped coding tasks, like migrations, bug fixes, and boilerplate, to an autonomous agent working independently. |
| Editor's pick | ✓ Yes | — |
| Use cases | development agents | development agents |
| Date added | 2026-05-02 | 2026-05-01 |
Pros and cons
GPT-5.5
Coding · paid
Pros
- ✓Top-of-class coding and reasoning benchmarks — measurably ahead of GPT-5 and competitive alternatives
- ✓True agentic capability with tool use, self-correction, and multi-step task completion
- ✓272K context handles entire codebases without chunking workarounds
- ✓Codex integration turns it into an autonomous software engineer inside ChatGPT
Cons
- ×API pricing is premium — $30/M output tokens adds up fast for heavy usage
- ×No free tier for the API; ChatGPT Free users are stuck on GPT-4o
- ×Slower inference than lighter models like GPT-4o-mini for simple tasks
- ×Closed-source with no self-hosting option — full vendor lock-in to OpenAI
Devin
Coding · paid
Pros
- ✓True autonomous execution — assign a task and Devin works through it independently
- ✓Full sandboxed environment with shell, browser, and editor for realistic development
- ✓Real-time session replays let you watch and understand its reasoning process
- ✓Excels at well-scoped tasks like migrations, bug fixes, and boilerplate generation
Cons
- ×Steep pricing at $500/user/month puts it out of reach for individuals and small teams
- ×Struggles with ambiguous requirements and open-ended architectural decisions
- ×Can go down wrong paths on complex tasks, wasting time before you intervene
- ×No free tier or trial to evaluate before committing
Related comparisons
Updated 2026-05-02. Spec data sourced from official product pages and tracked in our public directory at /tools.