Gemini Articles

Best Practices Sep 06, 2026Intermediate

Reasoning Models in Production: Claude Extended Thinking vs OpenAI o3 vs Gemini 2.5 Thinking (2026)

Compare Claude Extended Thinking, OpenAI o3, and Gemini 2.5 Thinking in real production workloads. Pricing per solved problem, tool-use behavior, latency, and the eval loop I use before shipping any reasoning model to real users.

Daichi Watanabe 16 min read

Best Practices Jul 26, 2026Intermediate

Parallel Tool Calls in Production: OpenAI, Anthropic, and Gemini Function Calling Compared (2026)

Parallel tool calls cut agent latency by 40-70%, but the OpenAI, Anthropic, and Gemini APIs behave differently. Runnable Python for each provider, the opt-out flags that matter, and paired-eval methodology for deciding when to serialize.

Daichi Watanabe 12 min read