Compare verified pricing and model limits for premium long-context model cost and access across providers. The cost example uses a long-context research workload and does not assume equal model quality.
Mythos 5 has a single tracked standard rate across its 1M context window but is limited to approved customers. GPT-5.6 Sol is lower-priced for shorter requests and uses a higher verified tier above its long-context threshold. Neither pricing structure establishes model quality.
| Decision factor | Claude Mythos 5 | gpt-5.6-sol |
|---|---|---|
| Short-context standard price | $10 input and $50 output per million tokens | $5 input and $30 output per million tokens |
| Long-context pricing | Standard pricing applies across the documented 1M context window | Higher tracked rates apply above 272k input tokens |
| Access | Limited to approved Project Glasswing customers | Published OpenAI API model |
Prices are USD per 1M tokens under each model's verified default profile.
| Field | Claude Mythos 5 | gpt-5.6-sol |
|---|---|---|
| Provider | Anthropic | OpenAI |
| API model ID | claude-mythos-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.