gpt-oss-20bvsGrok 4.6
gpt-oss-20b | Grok 4.6 | |
|---|---|---|
| Specifications | ||
Parameters | 21B | — |
Context window | 128k | — |
| Benchmarks | ||
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. | 60.7% | — |
Agentic coding CursorBench v3.2Cursor's own test of harder, real-world coding tasks inside a code editor, on the refreshed v3.2 task set. Scores aren't comparable with v3.1. Higher is better. | — | 69.9% |
Agentic coding DeepSWE 1.1Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better. | — | 65.9% |
Agentic coding FrontierCode v1.1 (Extended) · extended splitfrontier-difficulty agentic coding tasks (v1.1, extended split) | — | 61.3% |
Expert software engineering APEX-SWEexpert-level software-engineering tasks (AI Productivity Index) | — | 56.4% |
Agentic terminal coding Terminal-Bench 3.0command-line task completion (v3.0, much harder task set) | — | 26% |
Expert agentic work APEX-Agentsexpert-level agentic work tasks (AI Productivity Index) | — | 57.5% |
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. | 10.9% | — |
Multidisciplinary reasoning Humanity's Last Exam · with toolsHumanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | 17.3% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 71.5% | — |
General knowledge MMLUA 57-subject multiple-choice exam — history, law, medicine, maths — that was the standard measure of how much a model knows from 2020 until roughly 2024, when frontier scores crowded into the high 80s and labs moved on to harder tests. The scores here were published years apart under different testing setups, so read them as a historical record rather than a like-for-like ranking. Higher is better. | 85.3% | — |
Agentic legal work Harvey's Legal Agent BenchmarkHarvey's test of whether an AI agent can complete real legal work — drafting and reviewing documents, working with spreadsheets and presentations, and navigating files the way a lawyer's assistant would. Higher is better. | — | 15.8% |
Overall intelligence AA Intelligence IndexArtificial Analysis composite intelligence index across evals | — | 61 |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | — | 1753 |
Knowledge work AA-BriefcaseArtificial Analysis agentic office-work eval (Elo) | — | 1577 |
| Overview | ||
| Company | OpenAI | SpaceXAI |
| Release date | Aug 5 2025 | Aug 12 2026 |
| Access | Open Weight | Proprietary |
Which is better: gpt-oss-20b or Grok 4.6?
gpt-oss-20b and Grok 4.6 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. gpt-oss-20b shipped 372 days before Grok 4.6, so benchmark comparisons should account for the intervening progress.
gpt-oss-20b is open weight, while Grok 4.6 is proprietary.
Direct benchmark comparisons are unavailable — gpt-oss-20b and Grok 4.6 don't publish scores on any of the same benchmarks.
Frequently asked questions
gpt-oss-20b was released by OpenAI on Aug 5 2025.
Grok 4.6 was released by SpaceXAI on Aug 12 2026.
gpt-oss-20b is an open weight model released by OpenAI. Grok 4.6 is a proprietary model released by SpaceXAI.
Other comparisons
gpt-oss-20bvsClaude Opus 5Grok 4.6vsClaude Opus 5gpt-oss-20bvsGemini 3.6 FlashGrok 4.6vsGemini 3.6 Flashgpt-oss-20bvsMuse GlimmerGrok 4.6vsMuse Glimmergpt-oss-20bvsDeepSeek-V4-Pro-0813Grok 4.6vsDeepSeek-V4-Pro-0813gpt-oss-20bvsMistral Medium 3.5Grok 4.6vsMistral Medium 3.5gpt-oss-20bvsKimi K3Grok 4.6vsKimi K3