The sharpest frontier model for long-context coding and agentic loops as of mid-2026. The full 1M-token context window changes what's practical to feed in — entire codebases, full RFC threads, hour-long meeting transcripts. Anthropic's flagship; the new default for reliability-critical agent work.
Claude Opus 4.7 is Anthropic’s mid-2026 frontier release — the recommended default for long-context coding, agentic loops, and reasoning-heavy work.
What’s new in 4.7
The headline change is the 1M-token context window, up from 200K in 4.6. Practically, that means feeding in entire codebases, long meeting transcripts, or full RFC threads becomes routine rather than something you ration. Tool-use latency dropped meaningfully; agent loops feel less hesitant.
Where it sits in the pack
GPT-5 is the broader default with deeper tool integrations and a cheaper mid-tier (5-mini, 5-nano). Gemini 2.5 Pro still leads in video and long-document understanding with its 2M context. Opus 4.7’s lane is agentic reliability and coding — that’s the bet, and on those tasks it wins.
- launch · 2026-05-14
Anthropic ships Claude Opus 4.7 with 1M-token context window
Anthropic released Opus 4.7 yesterday with a full 1M-token context window, sharper agent loop reliability, and faster tool-use latency. Replaces Opus 4.5 as the recommended default for long-context coding and multi-step workflows.
- launch · 2026-05-11
Zhipu AI releases GLM-4.6 with open weights and frontier-tier benchmarks
Zhipu AI released GLM-4.6 with open weights under Apache 2.0, frontier-tier reasoning benchmark scores, and a single-H100 deployment story. The most credible open-weight challenger this quarter.