AI tool comparison
Claude Opus 4.7 vs GLM-5.1
Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.
Foundation Models
Claude Opus 4.7
Anthropic's new flagship — 87.6% SWE-bench, 1M context
75%
Panel ship
—
Community
Paid
Entry
Claude Opus 4.7 is Anthropic's latest flagship model, released April 16. It scores 87.6% on SWE-bench Verified — a 13-point improvement over Claude Opus 4.6 — and 94.2% on GPQA, making it competitive with the top frontier models on coding and scientific reasoning benchmarks. The context window extends to 1 million tokens with substantially improved retrieval accuracy at the far end of the window. The release introduces "Routines" — a first-party feature for defining persistent agentic workflows that Claude can execute autonomously across multiple sessions. Routines are defined in structured YAML and can include tool calls, conditional logic, and human-in-the-loop checkpoints. Anthropic positions this as a more reliable alternative to custom agent frameworks for common use cases. Pricing remains unchanged from Opus 4.6: $5/M input tokens, $25/M output tokens. The vision input resolution has been increased by 3.3x, which meaningfully improves performance on documents, diagrams, and UI screenshots. Available via API immediately and rolling out to Claude.ai Pro and Team plans over the next week.
Language Models
GLM-5.1
Open-weight #1 on SWE-bench Pro — built with zero Nvidia GPUs
100%
Panel ship
—
Community
Paid
Entry
GLM-5.1 is a 744B Mixture-of-Experts model from Z.ai (formerly Zhipu AI) that achieved 58.4% on SWE-bench Pro—making it the first open-weight model to top the global coding benchmark leaderboard, edging out GPT-5.4 (57.7%) and Claude Opus 4.6 (57.3%). Available on HuggingFace under the MIT license, it's one of the most permissively licensed frontier-grade coding models that exists. The model runs with 40B active parameters despite its 744B total size, offers a 200K context window, and was refined specifically for coding and agentic tasks through reinforcement learning. The training story is remarkable: Z.ai has been on the US Entity List since January 2025, cutting off access to Nvidia data center GPUs entirely. The entire GLM-5 training run used approximately 100,000 Huawei Ascend 910B chips. For open-source practitioners, GLM-5.1 is a landmark: a frontier-class coding model with MIT weights and benchmark numbers that would have seemed impossible from a China-sanctioned lab a year ago. The hardware independence angle raises pointed questions about chip export control effectiveness—and suggests the Ascend 910B has become a genuinely competitive training platform at massive scale.
Reviewer scorecard
“87.6% on SWE-bench isn't a small improvement — that's a meaningful jump for real-world coding tasks. The Routines feature addresses the biggest pain point with Claude in production: reliable multi-step agent behavior without building a custom framework.”
“The primitive here is a frontier-grade, MIT-licensed MoE coding model you can self-host — 40B active params at inference time despite 744B total weights, 200K context, no usage restrictions, no API keys before hello-world. The DX bet is correct: by releasing on HuggingFace under MIT, Z.ai put the complexity where it belongs — in your infra choices, not their licensing desk. SWE-bench Pro at 58.4% isn't a marketing claim; it's the same eval that humbled GPT-5 and Opus 4, and if you're running code agents in production today, the absence of a closed-API dependency is worth more than a 1% benchmark gap in either direction.”
“Benchmarks look great but the 1M context window performance hasn't been independently validated at the limits. Routines sound powerful but the YAML spec is still in beta with known edge cases. If you're running stable Opus 4.6 workflows, wait a week for the community to stress-test this before migrating.”
“Direct competitors are GPT-5 and Claude Opus 4 via API — both closed, both more expensive to run at scale, both with usage policies that can yank access. GLM-5.1 breaks at the infrastructure layer: you need serious hardware to serve 744B MoE at any latency that matters for interactive coding agents, and most teams don't have that. But the benchmark numbers are independently verifiable, the MIT license is unambiguous, and the Ascend 910B training story isn't PR spin — it's a geopolitical datapoint with real implications. What kills this in 12 months isn't a competitor; it's that cloud providers will offer managed endpoints and the 'open weights' story becomes theoretical for 90% of users. That said, the weights are real and the numbers are real, so: ship.”
“Anthropic is quietly winning the enterprise coding agent race. The combination of top SWE-bench scores with the Routines feature is a moat — developers don't switch orchestration frameworks easily once workflows are deployed. This release deepens that lock-in strategically.”
“The thesis this model bets on: chip export controls do not prevent frontier-class model training, and open-weight frontier models will become the infrastructure layer for commercial software development within 24 months. Both claims are now empirically stronger because of this release — 100,000 Ascend 910Bs producing a SWE-bench leader is the single most important data point on export control effectiveness since the controls were imposed. The second-order effect is the one that matters: if Huawei's Ascend stack is a credible frontier-training platform at scale, the assumption that Nvidia controls the ceiling of what's possible outside the US just broke. The open-weights + MIT license trend is on-time, not early — but GLM-5.1 is the first model to make that trend undeniable at coding-benchmark-frontier quality.”
“The 3.3x vision resolution upgrade is underrated for design work. Document analysis, layout review, and iterating on visual mockups are all dramatically better. I can finally paste a full Figma export and get coherent feedback on the entire design rather than just the top half.”
“The buyer for self-hosted GLM-5.1 is any team spending five figures monthly on closed coding-model APIs who also has compliance requirements that prohibit data leaving their infra — a real and growing cohort. Z.ai's actual moat isn't the weights (MIT means anyone can fine-tune and redistribute); it's that they've now proven they can train at this level without Nvidia, which means they're not blocked from the next iteration while US-sanctioned labs sit in hardware purgatory. The business risk is that MIT licensing is a distribution play, not a revenue play — Z.ai needs to convert open-weight credibility into enterprise API or cloud contracts fast, before the weights become a commodity that funds their competitors' fine-tunes.”
Weekly AI Tool Verdicts
Get the next comparison in your inbox
New AI tools ship daily. We compare them before you waste an afternoon.