AI tool comparison
Claude Opus 4.7 vs GPT-5.5
Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.
AI Models
Claude Opus 4.7
Anthropic's flagship model with task budgets for disciplined agentic work
75%
Panel ship
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Community
Paid
Entry
Claude Opus 4.7, released April 16, 2026, is Anthropic's strongest model to date and introduces a meaningful new primitive for agentic work: task budgets. A task budget gives Claude a token target for the entire agentic loop — thinking, tool calls, tool results, and final output — with a running countdown that lets the model prioritize and wind down gracefully rather than running out of context mid-task. Beyond task budgets, Opus 4.7 ships with substantially better vision at higher resolutions, improved creative output quality (better interfaces, slides, and docs), and gains on the hardest software engineering tasks where Opus 4.6 struggled to maintain context across long refactors. Pricing stays flat at $5/1M input and $25/1M output. Available day-one across Claude Pro, API, Amazon Bedrock, Vertex AI, Microsoft Foundry, Claude Code, Cursor, and GitHub Copilot, Opus 4.7 cements Anthropic's position as the go-to model for serious agentic workloads — particularly long-horizon coding sessions that previously needed close human supervision.
AI Models
GPT-5.5
OpenAI's new flagship unifies chat, code, and browser into one agent
75%
Panel ship
—
Community
Free
Entry
OpenAI shipped GPT-5.5 on April 23, 2026, positioning it as "a major step toward a unified AI super-app" that combines chat, coding, and browser use in a single model. It is accessible via a new Agent Mode dropdown inside ChatGPT for Pro, Plus, and Team subscribers, and through the API for developers. The model delivers stronger tool use and reliability than its predecessors, with particular improvements in multi-step agentic task completion. New workspace agents for ChatGPT Business and Enterprise can autonomously handle tasks across Slack, Gmail, and other connected platforms — the same territory OpenAI has been building toward since the Agents SDK launch earlier this year. GPT-5.5 is OpenAI's answer to growing pressure from Anthropic's Claude Opus 4.7, Google's Gemini Enterprise platform, and open-source contenders like Kimi K2.6 and Arcee Trinity. Whether it actually leapfrogs the competition or merely matches it is still shaking out in independent benchmarks, but for the millions of existing ChatGPT users, it's the biggest capability jump they'll feel in day-to-day use this year.
Reviewer scorecard
“Task budgets are the most useful new feature in a model release this year. I can now hand off a 4-hour refactor with confidence that Claude won't run off the rails or stall out at 80%. The hard coding gains are real — agentic loops on big codebases feel qualitatively different.”
“The API reliability improvements alone make this worth upgrading. Multi-step tool use has been the weak link in production OpenAI deployments — if GPT-5.5 actually fixes flakiness in function calling chains, that's worth the token cost increase.”
“At $25/1M output tokens, a single complex agentic loop can easily cost $5-10. Task budgets help, but they're a bandaid on the fundamental cost problem. For most teams, Sonnet 4.6 delivers 80% of the capability at 20% of the price.”
“OpenAI's release cadence has become so fast that GPT-5.5 may already feel dated by the time you integrate it. Independent benchmark results are inconsistent — some put it behind Kimi K2.6 on coding. And the 'unified super-app' framing is marketing; you're still paying separately for every capability.”
“Task budgets represent a real shift in how we think about agent control — not 'stop the agent if it goes wrong' but 'give the agent enough rope to finish, not enough to hang itself.' This mental model will propagate across the industry.”
“The Slack and Gmail workspace agents are the real story — they bring agentic AI to the office worker who will never touch an API. OpenAI's distribution advantage means GPT-5.5 will be the most-used AI model on the planet within weeks of launch, regardless of benchmark rankings.”
“The higher-resolution vision and tasteful output quality improvements are immediately noticeable in design-adjacent tasks. Generating polished slides and landing pages feels less like prompting a robot and more like briefing a designer.”
“Agent Mode in ChatGPT is finally making AI feel less like a chatbot and more like a collaborator. For creators who live in a browser, having a model that can autonomously browse, research, and draft without constant hand-holding is a genuine time multiplier.”
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