Claude Code leads on complex multi-file software engineering (88.6% SWE-bench Verified). Codex CLI leads on terminal-heavy DevOps workflows and shell tasks (82.7% Terminal-Bench). Both are terminal-based AI agents you can run from your command line. Which to use depends primarily on your work — soft
On June 2, Cognition pushed an OTA update renaming every Windsurf installation to Devin Desktop. Here's what technically changed — Devin Local, ACP, Agent Command Center — and what it signals about where AI coding tools are heading.
We took 10 prompts across different task types — writing, analysis, coding, research, creative work — and ran each through Claude Opus 4.8, GPT-5.5, Gemini 3.1 Pro, and Grok 4.3. The same prompt, the same temperature, evaluated on the same criteria.
Claude Code leads on complex multi-file engineering with 88.6% on SWE-bench. Cursor has the best IDE experience. Antigravity is the fastest. Most experienced developers use two or three together. Here's how to pick.
Claude Sonnet 4.6 produces the most natural long-form prose. GPT-5.5 leads on short-form marketing copy. Gemini wins when you need research grounding. We tested all three on the same prompts to find out when each model is the right choice.
GPT-5.5 scores higher on general reasoning benchmarks. Gemini 3.1 Pro has a 1M context window, stronger multimodal capabilities, and native Google Search grounding. Both are excellent. Which is better depends entirely on your workflow.
DeepSeek V4 costs roughly 10x less than Claude Opus 4.8, leads on math benchmarks, and can be self-hosted. Claude Opus 4.8 leads on general reasoning and software engineering. Here is when each makes sense.
Groq is 5-10x faster than OpenAI for token generation using custom LPU hardware. OpenAI's models are more capable on complex tasks. Groq only runs open-source models. Here is when to use each.
Gemini 3.1 Pro is the strongest multimodal model for most use cases in 2026 — reasoning natively over text, images, audio, video, and code within a 1M context window. GPT-5.5 leads on creative multimodal generation. Claude handles images but is primarily a text model.
Mistral Large 3 is 80% cheaper on output than GPT-5.5, comes with EU data residency, and is fully open-source under Apache 2.0. It won't beat GPT-5.5 on the hardest reasoning tasks. Here is when it matters.
GPT-5.5 is the stronger model on reasoning and complex tasks. Grok 4.3 is cheaper, faster, and has a dramatically larger 1M context window. Here is the full comparison with specs and use case guidance.
Ranking every major AI model in June 2026: Tier S (Claude Opus 4.8, GPT-5.5, Gemini 3.1 Pro), Tier A (Grok 4.3, Claude Sonnet 4.6, DeepSeek V4), Tier B (Perplexity, Mistral, Groq), and what each tier means for your workflow.
The largest context windows in 2026 belong to Gemini 3.1 Pro, Grok 4.3, and DeepSeek V4 at 1M tokens. Claude Opus 4.8 offers 200K. GPT-5.5 offers 128K. Here is when the difference actually matters and when it does not.
Grok 4.3 costs roughly 80% less than Claude Opus 4.8 at the API level. For reasoning-heavy work, Opus 4.8 wins. For cost-sensitive high-volume workloads with 1M context, Grok makes a strong case.
Perplexity is better for real-time sourced research. ChatGPT is better for synthesis, analysis, and long-form generation. They are not competing for the same workflow. Most serious researchers end up using both.
Claude Sonnet 4.6 is available on Claude Pro. Claude Opus 4.8 requires higher tier access. For most users — including most professionals — Sonnet 4.6 covers everyday tasks well. Here is when Opus is actually worth the upgrade.
Gemini 3.1 Pro has a 1M token context window, leads on multimodal tasks, and includes native Google Search grounding. Claude Opus 4.8 is the current #1 on the AI Intelligence Index and leads on software engineering. Here is when to use each.
DeepSeek V4 matches GPT-4o on math and coding benchmarks and costs about 9x less. It trails GPT-5.5 on complex reasoning and lacks multimodal features. Here is the honest tradeoff.
On May 28, Anthropic shipped Claude Opus 4.8 and immediately took the top spot on the Artificial Analysis Intelligence Index — 61.4 versus GPT-5.5's 60.2. Two weeks later, people are still arguing. Here's what the data actually shows.
Stop paying for 5 subscriptions. Compare GPT, Claude, Gemini and more side-by-side and pay only for what you use.