Best GPT-5 Codex alternatives
Users often seek alternatives to GPT-5 Codex because of its high output price of $10 /1M and high resource demands with maximum context. This list covers seven multimodal models offering varying trade-offs in intelligence, speed, cost, and context size.
Anthropic's Claude Sonnet 4.6 excels at long-context multimodal analysis.
Anthropic's closed multimodal model with a million-token context window.
Google's multimodal preview model with custom tools and massive context handling.
GPT-5.2 Pro handles images, text, and files over 400000 context at a much higher $168 /1M price with seamless multimodal integration but higher computational demands.
Multimodal coding model with 400k-token context from OpenAI.
GPT-5.1-Codex delivers a slightly lower intelligence_index of 43.1 with higher speed of 178.06 t/s and strong coding performance while matching the $10 /1M price and 400000 context.
Google's fast multimodal model for unified text, image, audio, and video tasks.
Claude Sonnet 4 handles complex multimodal tasks with a million-token context.
Frequently asked questions
Grok 4.3 is the strongest alternative with the closest intelligence_index of 43.9, larger context, and lower price.