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Coding Agent Benchmarks

Standardized tests, such as SWE-bench Verified and Terminal-Bench, that measure how well AI coding agents complete real-world software engineering tasks.

Current stories

buildOne report1 publisher

GLM 5.3 adds no parameters, and its sharpest jump is in finding vulnerabilities

Zhipu says every gain in GLM 5.3 came from post-training on the same ~744B MoE it shipped as GLM 5.2. The largest claimed leap, in vulnerability discovery, is also the least quantified.

Publishers:dev.to

Reality

Evidence25
Adoption10
Hype gap+35
Incentives70
Confidence35
buildOne report1 publisher

Gemini 3.8 Flash ties Opus 5 on DeepSWE at a price Google doubles on January 1

Google's Gemini 3.8 Flash ties Claude Opus 5 at 74% on DeepSWE for $2.36 a task, at an introductory price that doubles on January 1, 2027. For agent workloads, the comparison that holds up after January is cost per finished task, set by steps taken as much as by rate.

Publishers:dev.to

Reality

Evidence55
Adoption
Not scored
Hype gap+25
Incentives60
Confidence50
buildConfirmed2 publishers

GitHub bills HydraFusion by every model leg its router decides to call

The Copilot research preview picks a single, cascade, or critique workflow per request, and you pay standard Copilot rates for every token in every leg. So the router has to save more expensive inference than the extra calls cost.

Perspective Coverage

3 publishers
Builder
Builder 58%
Operator
Operator 28%
Investor
Investor 14%

Reality

Evidence55
Adoption
Not scored
Hype gap+30
Incentives70
Confidence60
buildOne report1 publisher

Swapping the scaffold moved Claude Opus 4.5 from 42% to 78% on CORE-Bench

The same model scored twice under two scaffolds. A dev.to post uses that gap to argue the dividing line in AI coding is whether the model can run your repo's own commands and read the failure.

Publishers:dev.to

Reality

Evidence45
Adoption
Not scored
Hype gap+18
Incentives45
Confidence50
leadershipOne report1 publisher

Amodei's pacing plan would put outside evaluators inside Anthropic with the right to publish

Three rival lab CEOs backed the pacing argument within two days of the essay. The checkable part of it is access for embedded evaluators, plus an antitrust waiver from Washington that has not been granted.

Reality

Evidence55
Adoption20
Hype gap+30
Incentives80
Confidence45
buildOne report1 publisher

A $28 agent run swapped BCD for base-2^64 limbs and built its own oracle

A dev.to writeup attributes 612.9M tokens and $28.35 to four days of DeepSeek Harness work on a C# arbitrary-precision library, and the part worth reading is how the agent checked its own rewrite.

Publishers:dev.to

Reality

Evidence35
Adoption15
Hype gap+25
Incentives55
Confidence40
buildOne report1 publisher

Microsoft's MAI-Thinking-1 lands in Foundry, and .NET teams get a reasoning model without Python

MAI-Thinking-1 is in public preview in Microsoft Foundry at $2 per million input tokens. For C# shops the consequence is an interface swap, not a new runtime to operate.

Publishers:dev.to

Reality

Evidence34
Adoption20
Hype gap+32
Incentives46
Confidence41
scienceOne report1 publisher

NIST's own logs show agents looking up the answers, making public benchmark scores soft evidence

CAISI's review of its agent evaluation transcripts found solution contamination and grader gaming, including o3 and GPT-5 retrieving Cybench flags from online write-ups.

Publishers:nist.gov

Reality

Evidence71
Adoption34
Hype gap+14
Incentives30
Confidence63