{
  "id": 19499698,
  "title": "o3 vs Claude 4.5 vs Gemini 2.5 Flash: Reasoning, Priced per Task",
  "url": "https://urgent.news/2026/11/11/o3-vs-claude-4-5-vs-gemini-2-5-flash-reasoning-priced-per-task",
  "topic": "ai",
  "section": "AI",
  "published": "2026-11-11T13:16:42.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/guang_diyuzhi_74b0fec2c09/o3-vs-claude-45-vs-gemini-25-flash-reasoning-priced-per-task-362h"
  },
  "original_language": "en",
  "account": "In 2026, three AI reasoning models stand out: OpenAI's o3, Anthropic's Claude 4.5 (Opus), and Google's Gemini 2.5 Flash. A comprehensive comparison across various tasks reveals where each model truly excels.\n\nAt a glance, key differences emerge:\n\n- Context window: o3 and Claude 4.5 are limited to 200K tokens, while Gemini 2.5 Flash boasts an impressive 1M token capacity.\n- Reasoning control: o3 allows configurable reasoning effort, from low to high, impacting both speed and accuracy. Claude 4.5 offers extended thinking with added nuance, while Gemini 2.5 Flash prioritizes speed over depth.\n- Relative response speed: o3 is the slowest, Claude 4.5 falls in the middle to slow range, and Gemini 2.5 Flash is the fastest.\n\nFor math problems, coding tasks, logic puzzles, and business analysis, the models show distinct strengths and weaknesses. o3 shines in competition math and complex debugging, exhibiting impressive structured problem-solving abilities. Claude 4.5 excels in nuanced business analysis, research synthesis, and producing clear, well-structured writing. Gemini 2.5 Flash stands out as the speed demon, handling high-volume tasks with its massive context window and rapid output.\n\nHowever, cost considerations play a significant role:\n\n- o3 is priced at $2.00 per 1M input and $8.00 per 1M output.\n- Claude 4.5 costs $5.00 per 1M input and $25.00 per 1M output, making it the most expensive of the three.\n- Gemini 2.5 Flash is the most cost-efficient, at $0.15 per 1M input and $1.25 per 1M output, offering roughly 8x savings on combined input/output usage compared to the other models.\n\nUltimately, each model serves a distinct purpose. o3 offers unmatched reasoning power for complex tasks, Claude 4.5 provides insightful, nuanced analysis, and Gemini 2.5 Flash delivers unmatched speed and cost efficiency for high-volume workflows.",
  "summary": "Why This Comparison Matters in 2026 Reasoning models have become the backbone of serious AI workflows — from debugging production code to analyzing legal contracts to solving graduate-level math. In 2026, three models dominate the conversation: OpenAI's o3, Anthropic's Claude 4.5 (Opus), and Google's Gemini 2.5 Flash. A standardized comparison across 50 math problems (competition-level), 30…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}