Grok 4.6 tops Newsroom Reliability v0.2 benchmark at 0.79

SpaceXAI's Grok 4.6 topped the Newsroom Reliability v0.2 benchmark with a mean score of 0.79 across 50 tasks at an estimated $0.0056 per task, according to RuntimeWire's leaderboard. OpenAI's GPT-5.6 Sol followed at 0.77, with other GPT-5.6 variants and Anthropic's Claude Opus 4.8 clustering closely behind.

Grok 4.6 tops Newsroom Reliability v0.2 benchmark at 0.79 In a 50-task run of Newsroom Reliability v0.2, SpaceXAI’s Grok 4.6 ranked first with a score of 0.79 at an estimated $0.0056 per task. OpenAI’s GPT-5.6 Sol followed at 0.77, while several GPT-5.6 variants and Anthropic’s Claude Opus 4.8 clustered close behind. By RuntimeWire Staff /author/runtimewire-staff · Published Leaderboard | Rank | Model | Mean score | Est. cost/task | | 1 | SpaceXAI: Grok 4.6 | 0.79 | $0.0056 | | 2 | OpenAI: GPT-5.6 Sol | 0.77 | $0.0217 | | 3 | OpenAI: GPT-5.6 Sol Pro | 0.76 | $0.0217 | | 4 | OpenAI: GPT-5.6 Luna Pro | 0.76 | $0.0005 | | 5 | OpenAI: GPT-5.6 Luna | 0.76 | $0.0005 | | 6 | OpenAI: GPT-5.6 Terra | 0.75 | $0.0045 | | 7 | Anthropic: Claude Opus 4.8 | 0.74 | $0.0223 | | 8 | Inkling Small | 0.73 | — | | 9 | OpenAI: GPT-5.6 Terra Pro | 0.72 | $0.0045 | | 10 | Anthropic: Claude Opus 4.8 Fast | 0.72 | $0.0436 | | 11 | Kimi K3 | 0.71 | — | | 12 | Inkling FP4 | 0.70 | — | | 13 | GLM 5.2 | 0.69 | — | | 14 | Google: Gemini 3.6 Flash | 0.67 | $0.0056 | | 15 | Gemini 3.7 Flash | 0.66 | — | | 16 | DeepSeek-V4-Pro | 0.63 | — | | 17 | Qwen: Qwen3.7 Max | 0.62 | $0.0040 | | 18 | DeepSeek-V4-Flash | 0.61 | — | How we scored it Every model answered the same 50-task battery from Newsroom Reliability v0.2 , one task at a time, with no tools and no retries on content. 50 open-ended tasks were graded 0–10 by gpt-5.4 against a fixed rubric — blind to which model wrote the answer — and normalized to the same 0–1 scale. A model's mean score averages its graded tasks; a generation failure counts as 0. Cost per task is estimated from each model's published per-token pricing "—" where pricing isn't public , so treat it as directional, not billing-exact. Explore every prompt, answer, and per-task grade in the interactive leaderboard /benchmarks/newsroom-reliability-v0-2-leaderboard . Reader comments Conversation for this story loads after sign-in.