Engineering
Code Generation
Generating working code from specifications with appropriate error handling and tests.
Recommended agents
AnthropicAnthropicOpenAI
Claude Opus 4.7
Anthropic's flagship at the time of this entry: extended thinking on, 1M-token context, the most patient of the frontier models.
Claude Code
Anthropic's official CLI coding agent. Long-horizon refactors, tool-use harness, MCP server support.
GPT-5
OpenAI's reasoning-first flagship. Native chain-of-thought, three reasoning-effort tiers, the highest published benchmark scores at release.
Budget pick
Claude Sonnet 4.6
$3-$15 per million tokens
Key considerations
- ›Test generation
- ›Edge case coverage
- ›Language specificity