Claude Sonnet 5
Anthropic's production workhorse — Fable-class reasoning at Sonnet latency and cost
Verdict
The one most teams should actually be running in production. Meaningfully sharper than Claude 4 Sonnet on coding and long-context retrieval, without the latency and cost of the Fable tier. MCP tool ecosystem is mature. First pick for agentic workflows, code generation, and day-to-day engineering assistance.
Other Text Generation & Reasoning
- Claude 3.5 SonnetStable
Anthropic's older workhorse with 200K context and computer use
- Claude 4 SonnetProduction
Anthropic's previous-gen workhorse — still solid, no longer the default
- Claude Fable 5Production
Anthropic's most intelligent generally available model — Mythos-class reasoning
- Command R+Stable
Cohere's enterprise model optimised for RAG and tool use
- DeepSeek R1Production
Open-weight chain-of-thought reasoning rivalling GPT-o1
- DeepSeek V3Production
685B MoE model trained for $5.5M — remarkable efficiency