Claude 4.5 Haiku (thinking)

Claude Fable 5 (Adaptive Reasoning, Max Effort) is one of the most powerful AI models, regarded as a safety-optimized version of Mythos 5. It stands out for its adaptive reasoning and maximum effort capabilities — particularly when using Max effort mode, where Anthropic has implemented a mechanism that re-invokes Opus 4.8, though at a very high price of $10 per 1M input tokens (cache $1/1M tokens) and $50 per 1M output tokens.

Claude Opus 5 (Adaptive Reasoning, Max Effort) is the Opus 5 variant that uses the highest adaptive reasoning effort. It ranks among the leading models in intelligence, supports text and image input, produces text output, and has a one-million-token context window. Artificial Analysis measures output at about 53 tokens per second, with pricing of $5 per million input tokens and $25 per million output tokens, making it a powerful but expensive, relatively slow, and somewhat verbose option among comparable models.

Claude Opus 4.8 (Adaptive Reasoning, Max Effort) is one of the top models in terms of intelligence, supporting text and image input, and text output. This model excels at complex tasks and is slower than average compared to other models in the same segment. It is also quite verbose in its responses, so Anthropic has added a fast feature for this model, notably with the price remaining unchanged at $6.25/1M input tokens (cache $0.50) and $25/1M output tokens.

Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) is a top-tier intelligence model, notable for its adaptive reasoning capability. However, it has drawbacks: high cost, slow processing speed, and responses that tend to be quite verbose. The model supports both text and image input, generating text-only output. Opus 5 is priced at $5 per 1M input tokens (cached: $0.5) and $25 per 1M output tokens.

Claude Opus 5 (medium) is a leading artificial intelligence model, stands out for its ability to process information concisely and supports text and image inputs to output text. Although highly rated for its intelligence, this model has the drawbacks of slow processing speed and higher costs compared to competitors in the same segment. The price of Opus 5 is $5/1M input tokens ($0.5 cached) and $25/1M output tokens.

Claude Opus 4.7 (Non-reasoning, High Effort) is one of Anthropic's best models. Despite reduced reasoning, with high effort enabled the model remains very powerful. It supports text and image input, with text output. However, this model is quite expensive, slower than average, and tends to overthink.