AI tool comparison
Google Gemma 4 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.
Open Source Models
Google Gemma 4
Google's open multimodal models — vision, audio, and text under Apache 2.0
75%
Panel ship
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Community
Paid
Entry
Google Gemma 4 is the most capable open model family Google has released, and the first to unify text, vision, and audio in a single architecture — all under the Apache 2.0 license. Available in four sizes (E2B, E4B, 26B MoE, 31B Dense), the lineup runs everywhere from smartphones to high-end GPUs and covers 140+ languages with context windows up to 256K. The headline stat: the 31B Dense model benchmarks above models nearly 20x its size in certain evals, making it the sharpest intelligence-per-parameter model in the open-source ecosystem as of its April 2026 release. The multimodal architecture processes documents with OCR, analyzes charts, transcribes speech, and understands video frames from a single model — no pipeline stitching required. For developers and researchers, the Apache 2.0 licensing is the real unlock. Gemma 4 is fully OSI-approved and commercially usable without restriction, building on a community of 400M+ downloads from prior Gemma versions and 100,000+ variants in the wild.
AI Models
GPT-5.5
OpenAI's new flagship unifies chat, code, and browser into one agent
75%
Panel ship
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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
“Apache 2.0 on a model that beats GPT-class performance at 31B? Ship it immediately. The MoE 26B variant is already running under 16GB VRAM for me with llama.cpp quantization. The unified multimodal arch saves a ton of pipeline complexity.”
“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.”
“Google's benchmark marketing is getting harder to trust — 'beats 600B rivals' is cherry-picked. The audio modality is notably weaker than Gemini 3.1, and fine-tuning the MoE variant requires infrastructure most teams don't have. Real-world performance lags the headline numbers.”
“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.”
“The 100,000-variant Gemmaverse is a real ecosystem flywheel. Every new Gemma release compresses capability curves downward — things that required cloud APIs last year now run on-device. Gemma 4's audio addition makes it the first truly comprehensive local AI.”
“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.”
“A single model that can read my documents, analyze charts, transcribe my audio notes, and generate code is genuinely transformative for creative production. The Apache license means I can embed it in client deliverables without legal headaches.”
“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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