claude-mythos-5 API pricing
Anthropic charges $10 per million input tokens and $50 per million output tokens for claude-mythos-5, and $1 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.035, or $0.0175 through the batch API.
Prices updated October 28, 2026
Input / 1M tokens
$10
Output / 1M tokens
$50
Cached input / 1M tokens
$1
Typical request
$0.035
claude-mythos-5 price per million tokens
| Token type | Standard | Batch API |
|---|---|---|
| Input | $10 | $5 |
| Cached input | $1 | $0.5 |
| Output | $50 | $25 |
claude-mythos-5 supports a 1M-token context window, up to 128K output tokens, image input, tool calling and reasoning.
What claude-mythos-5 costs per request
| Request | 1 request | 1,000 requests | 1M requests |
|---|---|---|---|
| Short chat message (300 in, 200 out) | $0.013 | $13.00 | $13,000.00 |
| Typical request (1K in, 500 out) | $0.035 | $35.00 | $35,000.00 |
| Long document summary (20K in, 1K out) | $0.25 | $250.00 | $250,000.00 |
| Coding agent step (50K in, 2K out) | $0.60 | $600.00 | $600,000.00 |
At standard rates. A token is about 4 characters of English text, so 1,000 tokens is roughly 750 words. Anthropic counts tokens with its own tokenizer, so the same text can be a different number of tokens.
Models with a similar price
| Model | Provider | Input / 1M | Cached input / 1M | Output / 1M | Typical request |
|---|---|---|---|---|---|
| claude-opus-4-5 | Anthropic | $5 | $0.5 | $25 | $0.0175 |
| claude-opus-4-6 | Anthropic | $5 | $0.5 | $25 | $0.0175 |
| claude-opus-4-7 | Anthropic | $5 | $0.5 | $25 | $0.0175 |
| gpt-5.5 | OpenAI | $5 | $0.5 | $30 | $0.02 |
| gpt-6-astra | OpenAI | $10 | $1 | $50 | $0.035 |
| claude-fable-5 | Anthropic | $10 | $1 | $50 | $0.035 |
| claude-fable-5-1 | Anthropic | $10 | $0.25 | $50 | $0.035 |
| claude-mythos-5-1 | Anthropic | $10 | $0.25 | $50 | $0.035 |
Other Anthropic models
- claude-fable-5 $10 / $50
- claude-fable-5-1 $10 / $50
- claude-haiku-4-5 $1 / $5
- claude-haiku-5-5 $0.1 / $0.5
- claude-mythos-5-1 $10 / $50
- claude-opus-4-5 $5 / $25
- claude-opus-4-6 $5 / $25
- claude-opus-4-7 $5 / $25
- claude-opus-4-8 $5 / $25
- claude-opus-5 $5 / $25
- claude-opus-5-5 $4 / $20
- claude-sonnet-4-5 $3 / $15
- claude-sonnet-4-6 $3 / $15
- claude-sonnet-5 $2 / $10
- claude-sonnet-5-5 $2 / $10
Source: Anthropic pricing.