Claude Mythos 5.1: API pricing, providers and specs
Claude Mythos 5.1 is a text model by Anthropic. 2 providers serve it, from $50 to $50 /1M; the lowest price is at Anthropic.
Lowest price$50/1Mat Anthropic
Maker's price$50/1MAnthropic
Providers2
Context—
How Claude Mythos 5.1 compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $50 /1M, its lowest price is above 98% of comparable models (median $1.10).
- 2 providers serve it; 36% of comparable models have fewer.
Claude Mythos 5.1 prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| AnthropicOfficial | $10/1M | From$50/1M | $0.25/1M | — |
 Amazon Bedrock | $10/1M | From$50/1M | $0.25/1M | — |
- AnthropicOfficialFrom$50
- Amazon BedrockFrom$50
Prices in US dollars, updated daily from each provider. Prices last checked Oct 25, 2026.
Specs
- Type
- Text
- Maker
- Anthropic
- Inputs
- Text
- Outputs
- Text
- Context
- —
- Max output
- —
- Capabilities
- —
- Released
- —
- License
- proprietary
- Open weights
- No, API only
Alternatives to Claude Mythos 5.1
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Claude Mythos 5.1this model | $50/1M | — | — | 2 |
| GPT-6 Astra | $25/1M | 1.05M | 1775 | 31 |
| GPT-4 | $60/1M | 8K | 1206 | 5 |
| GPT-5.6 | $30/1M | — | — | 1 |
| Kimi K3.1 Pro Highspeed (Moonshot AI) | $20/1M | 1.05M | — | 6 |
 Qwen3.8 Livetranslate Flash Realtime | $20/1M | 53K | — | 2 |
| Qwen Deep Research | $23.37/1M | — | — | 1 |
| Qwen3.5 Livetranslate Flash Realtime | $20/1M | — | — | 1 |
| Kimi K3 Us | $22.50/1M | — | — | 1 |
More from Anthropic
Claude Opus 5.5Anthropic$16/1MClaude Sonnet 5.5Anthropic$8/1MClaude Haiku 5.5Anthropic$0.30/1MClaude-Sonnet-3.5Anthropic$15/1MClaude Opus 5Anthropic$20/1MClaude Sonnet 4.6Anthropic$12/1MClaude Fable 5Anthropic$40/1MClaude Fable 5.1Anthropic$40/1M
All 35 Anthropic modelsClaude Mythos 5.1 FAQ
Anthropic, at $50 /1M. 2 providers serve Claude Mythos 5.1; the table above lists every one with its price.
No. Claude Mythos 5.1 is only available through an API; Anthropic does not publish its weights.
2 API providers serve Claude Mythos 5.1. Compare their prices above, or open a provider to see everything it offers.
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