On July 24, 2026 Anthropic released Claude Opus 5, its fourth new model in under 60 days (after Sonnet 5, Fable 5 and Mythos 5 in June). Opus 5 delivers close to flagship Fable 5 quality on many tasks — within 0.5% on CursorBench 3.2 at half the cost, and surpassing Fable 5 on OSWorld 2.0 at one-third the cost. It offers a 1M-token context window, up to 128K output tokens, adaptive thinking, a five-level effort setting, and stays priced at $5/M input and $25/M output tokens.
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Anthropic ships Claude Opus 5 — near-top-tier performance at half the price
Why this matters for founders
This is a direct lever on your AI cost/quality tradeoff: you can now run agentic coding, research, and computer-use workflows at Fable-class quality without paying flagship prices. If you build product features or internal tooling on Claude, re-benchmark your prompts on Opus 5 — the same output at 1/2 to 1/3 the token cost drops your unit economics. The rapid tiered release cadence also means pinning to one model is riskier; design your stack to swap models easily.
Source: Axios
SaaS / SoftwareEnterprise SoftwareConsumer App #ai-tools#llm#ai-models#ai-cost#product-development#product#engineering#finance
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