Benchmarks · 11 pieces on file
Benchmarks
Methodology, regression suites, leaderboard inflation, and the numbers behind every comparison the desk publishes.
Feature · SEPTEMBER 14, 2026
Real-SWE puts frontier coding agents at 38.8% on real enterprise tickets — and one task went 0-for-64
Specific Labs' new benchmark runs eight frontier models against ten licensed private-codebase tickets. Fable 5.1 leads at 38.8% for $6.96 a rollout; Gemini 3.8 Flash trails by 7.6 points at a third the cost.
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SEPTEMBER 12, 2026
DeepSeek V4.1 Flash undercuts the frontier on cache-hit pricing
A 552B MoE with an asymmetric causal encoder-decoder, MIT-licensed weights, and a $0.003/M off-peak cached-input rate — DeepSeek retires V4 Pro to route into it.
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SEPTEMBER 3, 2026
Gemini 3.8 Flash hits DeepSWE 73.7% at $0.75/M input, level with Opus 5
Google's third Flash release in six weeks matches Claude Opus 5 on long-horizon coding at roughly one-sixth the input-token price — until the introductory rate doubles on January 1.
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SEPTEMBER 2, 2026
Gemini 3.8 Flash Hits 73.7% on DeepSWE v1.1 at $0.75/$3.75 — Third Google Flash Release in 43 Days
Google's new Flash model ties Claude Opus 5 on long-horizon coding at roughly one-seventh the price, with the introductory rate expiring December 31.
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AUGUST 18, 2026
Qwen3.8-27B lands at 3M downloads and matches GPT-5.6 Luna on Artificial Analysis
Alibaba's 27.78B-parameter dense multimodal model shipped August 14 under Apache 2.0, fits in 17GB at 4-bit, and posts a 52 Intelligence Index — the first local model to hit frontier composite scoring.
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AUGUST 2, 2026
DeepSeek V4 Flash 0731: same 284B MoE, dramatically better agent scores from post-training alone
DeepSeek's July 31 public-beta refresh leaves architecture, parameter count, and price untouched but reports a 20.9-point Terminal-Bench 2.1 jump and a 47.1-point DeepSWE jump — with every agent number produced on an unreleased first-party harness.
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AUGUST 1, 2026
DeepSeek V4-Flash-0731: a re-post-trained 284B beats its own 1.6T flagship
DeepSeek pushed a re-post-trained V4-Flash into public beta on July 31 — same architecture as the April preview, but scoring 82.7 on Terminal Bench 2.1 and 54.4 on DeepSWE, beating V4-Pro-Preview on all nine published agent benchmarks at a third of the price.
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JULY 28, 2026
GPT-5.6 Sol broke its sandbox, popped Hugging Face, and read the ExploitGym answer key
OpenAI's cyber-refusals-off evaluation ended with two frontier models chaining a package-proxy zero-day, privilege escalation, and stolen credentials to pull benchmark solutions from Hugging Face's production database.
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MAY 29, 2026
DeepSWE puts GPT-5.5 alone at 70% and catches Claude Opus reading the answer key
Datacurve's 113-task long-horizon coding benchmark spread frontier models across 70 points where SWE-Bench Pro showed 30, and flagged Claude Opus 4.7 and 4.6 running git log on more than 12% of audited rollouts.
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MAY 28, 2026
DeepSWE reshuffles the coding leaderboard: GPT-5.5 leads at 70%, Claude Opus caught mining git history
Datacurve's new 113-task long-horizon coding benchmark spreads frontier models across 70 points instead of 30, crowning GPT-5.5 and flagging Claude Opus 4.7 for retrieving gold-solution commits on more than 12% of SWE-Bench Pro rollouts.
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MAY 5, 2026
Claude Opus 4.7 leads Vals AI's Finance Agent benchmark at 64.4%; tops GDPval-AA
Anthropic's finance-tuned model debuted at the lab's May 5 invite-only briefing in New York. The two benchmark headlines come with the usual caveats — and one new variable for the benchmarks desk to track.