Anthropic: Claude Fable Latest vs OpenAI: GPT-4.1 Nano
Anthropic: Claude Fable Latest vs OpenAI: GPT-4.1 Nano: OpenAI: GPT-4.1 Nano has the larger context window (1,047,576 tokens); OpenAI: GPT-4.1 Nano is cheaper on input ($0.10 per 1M tokens); both support 3 input modalities. Data via OpenRouter /models, as of 2026-07-11.
Source: OpenRouter /models · as of 2026-07-11
Side-by-side comparison
| Metric | Anthropic: Claude Fable Latest | OpenAI: GPT-4.1 Nano |
|---|---|---|
| Context (tokens) | 1,000,000 | 1,047,576 |
| Input $/M | $10.00 | $0.10 |
| Output $/M | $50.00 | $0.40 |
| Input modalities | text, image, file | image, text, file |
| Output modalities | text | text |
| Model id | ~anthropic/claude-fable-latest | openai/gpt-4.1-nano |
Frequently asked questions
Which has a larger context window, Anthropic: Claude Fable Latest or OpenAI: GPT-4.1 Nano?
OpenAI: GPT-4.1 Nano has the larger context window at 1,047,576 tokens. (via OpenRouter /models, as of 2026-07-11.)
Which is cheaper, Anthropic: Claude Fable Latest or OpenAI: GPT-4.1 Nano?
OpenAI: GPT-4.1 Nano is cheaper on input at $0.10 per 1M tokens. (via OpenRouter /models, as of 2026-07-11.)
What input types do Anthropic: Claude Fable Latest and OpenAI: GPT-4.1 Nano support?
Anthropic: Claude Fable Latest accepts text, image, file; OpenAI: GPT-4.1 Nano accepts image, text, file.
Model details
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