Claude Sonnet 4 vs Gemini 3.0 Flash
Anthropic Claude Sonnet 4 | Google Gemini 3.0 Flash | |
|---|---|---|
| Overview | ||
| Company | Anthropic | |
| Release date | May 22 2025 | Dec 17 2025 |
| Access | Proprietary | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 30% | — |
Agentic coding SWE-Bench ProCan the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | — | 49.6% |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 72.7% | 78%Best |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | — | 58% |
Multi-step tool use MCP AtlasCan the AI chain together many tools and steps to complete one bigger task, rather than doing just a single thing? Higher is better. | — | 62% |
General tool use ToolathlonTests how well the AI uses everyday real-world tools and apps to get things done. Higher is better. | — | 49.4% |
Multidisciplinary reasoning Humanity's Last Exam · no toolsHumanity's Last Exam — extremely hard expert questions across many subjects, written so you can't just look up the answer. “No tools” means the AI answers on its own. Higher is better. | — | 33.7% |
Abstract reasoning ARC-AGI-2Puzzle-style tests of abstract reasoning and pattern-finding — the kind of thing people find easy but AIs often struggle with. Higher is better. | — | 33.6% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 75.4% | 90.4%Best |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | — | 65.1% |
Agentic financial analysis Finance Agent v2Tests the AI on real financial-analysis work, like digging through reports and making sound decisions. Higher is better. | — | 42.6% |
Knowledge work GDPval-AAMeasures how well the AI does economically valuable knowledge work, judged against human experts. Shown as a rating (like a chess Elo) — higher is better. | — | 1204 |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | — | 80.3% |
Multimodal reasoning MMMU-ProA tougher version of MMMU — college-level questions that mix images, diagrams, and text together. Higher is better. | — | 81.2% |
Spatial reasoning Blueprint-Bench 2Can the AI reason about space and layout — for example, understanding a floor plan or blueprint? Higher is better. | — | 0% |
Long context MRCR v2 (8-needle) · 128k averageTests whether the AI can find specific details buried inside a very long document (around 128k tokens — roughly a long book). Higher is better. | — | 67.2% |
Long context MRCR v2 (8-needle) · 1M pointwiseTests whether the AI can find specific details buried inside an enormous document (around 1 million tokens — many books). Higher is better. | — | 22.1% |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | — | 1437 |
| Timeline | ||
| Release gap | Claude Sonnet 4 shipped 209 days before Gemini 3.0 Flash | |
Which is better: Claude Sonnet 4 or Gemini 3.0 Flash?
Gemini 3.0 Flash leads Claude Sonnet 4 on 2 of the 2 benchmarks they both report (SWE-Bench Verified, GPQA Diamond). Claude Sonnet 4 shipped 209 days before Gemini 3.0 Flash, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On SWE-Bench Verified, Gemini 3.0 Flash leads at 78% vs Claude Sonnet 4 at 72.7%. On GPQA Diamond, Gemini 3.0 Flash leads at 90.4% vs Claude Sonnet 4 at 75.4%.
Frequently asked questions
Claude Sonnet 4 was released by Anthropic on May 22 2025.
Gemini 3.0 Flash was released by Google on Dec 17 2025.
Gemini 3.0 Flash leads on SWE-Bench Verified — Claude Sonnet 4 72.7% vs Gemini 3.0 Flash 78%.
Gemini 3.0 Flash leads on GPQA Diamond — Claude Sonnet 4 75.4% vs Gemini 3.0 Flash 90.4%.
Other comparisons
Claude Sonnet 4 vs GPT-5.6 SolGemini 3.0 Flash vs GPT-5.6 SolClaude Sonnet 4 vs Muse Spark 1.1Gemini 3.0 Flash vs Muse Spark 1.1Claude Sonnet 4 vs Grok 4.5Gemini 3.0 Flash vs Grok 4.5Claude Sonnet 4 vs DeepSeek-V4-ProGemini 3.0 Flash vs DeepSeek-V4-ProClaude Sonnet 4 vs Mistral Medium 3.5Gemini 3.0 Flash vs Mistral Medium 3.5Claude Sonnet 4 vs Kimi K2.7 CodeGemini 3.0 Flash vs Kimi K2.7 Code