Compare verified pricing and model limits for API pricing and workload fit across providers. The cost example uses a long-context research workload and does not assume equal model quality.
The short-context list prices favor GPT-5.6 Sol in this pair, but long requests need a separate calculation because OpenAI applies a higher rate above 272k input tokens. Fable 5 adds a provider-specific refusal and fallback path to the rollout review.
| Decision factor | Claude Fable 5 | gpt-5.6-sol |
|---|---|---|
| Standard token price | $10 input and $50 output per million tokens | $5 input and $30 output per million tokens at or below the tracked threshold |
| Long-context pricing | The tracked default profile remains $10 input and $50 output | Above 272k input tokens, the full request uses $10 input and $45 output per million tokens |
| Tracked limits | 1M context and 128k maximum output | 1.05M context and 128k maximum output |
Prices are USD per 1M tokens under each model's verified default profile.
| Field | Claude Fable 5 | gpt-5.6-sol |
|---|---|---|
| Provider | Anthropic | OpenAI |
| API model ID | claude-fable-5 | gpt-5.6-sol |
| Input / 1M | $10.00 | $5.00 |
| Cached input / 1M | $1.00 | $0.50 |
| Output / 1M | $50.00 | $30.00 |
| Context window | 1,000,000 tokens | 1,050,000 tokens |
| Maximum output | 128,000 tokens | 128,000 tokens |
| Accepted input | text, image | text, image |
150,000 input and 5,000 output tokens per request, 2,000 monthly requests, and 10% cached input.
Cost result: gpt-5.6-sol is $1,565.00 lower per month for these assumptions. This is a price comparison, not a model-quality ranking.
Models whose tracked context window is below the scenario input are excluded from the compatible-model table.
Latency, reliability, output quality, retries, regional processing, and provider-specific tool charges can change the practical decision.