Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
Model details →Anthropic: Claude Fable 5 vs OpenAI: GPT Chat Latest
Anthropic: Claude Fable 5 and OpenAI: GPT Chat Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Fable 5 | OpenAI: GPT Chat Latest | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 400K | 🏆 Anthropic: Claude Fable 5 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $10.00 | $5.00 | 🏆 OpenAI: GPT Chat Latest |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $50.00 | $30.00 | 🏆 OpenAI: GPT Chat Latest |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | — | 🏆 Anthropic: Claude Fable 5 |
Frequently asked questions
Is Anthropic: Claude Fable 5 better than OpenAI: GPT Chat Latest?
Anthropic: Claude Fable 5 and OpenAI: GPT Chat Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Anthropic: Claude Fable 5 and OpenAI: GPT Chat Latest?
Input: $10.00 vs $5.00 per 1M tokens. Output: $50.00 vs $30.00 per 1M tokens.
What context windows do Anthropic: Claude Fable 5 and OpenAI: GPT Chat Latest support?
Anthropic: Claude Fable 5 supports up to 1M tokens. OpenAI: GPT Chat Latest supports up to 400K tokens.
Do both Anthropic: Claude Fable 5 and OpenAI: GPT Chat Latest support tool calling?
Anthropic: Claude Fable 5: yes. OpenAI: GPT Chat Latest: yes.
Compare Anthropic: Claude Fable 5 with other models
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