AnthropicClaude Mythos 5.2
Launch tracker · day 5
Claude Mythos 5.2 at launch: what is known so far
As of 13 Nov 2026, no independent benchmark publisher has posted results for Claude Mythos 5.2 (Anthropic, released 9 Nov 2026) yet. It has no BenchLeader Index yet: the Index needs at least five independent results across two categories. It is listed at $8.00 in / $40.00 out per 1M tokens, with a 1M-token context window. Not yet measured by Artificial Analysis, LMArena, Epoch AI, Vals AI, LiveBench, ARC Prize, Scale AI and SWE-bench.
- Released
- 9 Nov 2026 (day 5)
- Provider
- Anthropic
- Price
- $8.00 in / $40.00 out per 1M tokens
- Context window
- 1M tokens
- Open weights
- Not stated
- BenchLeader Index
- Not yet (needs five results in two categories)
Boards usually post results within days of a launch; this page is rebuilt every six hours.
Scores from independent publishers only; benchmark figures a provider publishes about its own model are not shown.
No cheaper ranked model scores higher: it is on the price frontier.
As of 13 Nov 2026, Claude Mythos 5.2 by Anthropic is not yet ranked on the BenchLeader Index, which needs at least five independent results across two categories. API pricing: $8.00 per 1M input tokens and $40.00 per 1M output tokens ($16.00 blended at 3:1), list price on 13 Nov 2026. Released 9 Nov 2026.
Key facts (as of 13 Nov 2026)
- Claude Mythos 5.2 API pricing: $8.00 per 1M input tokens and $40.00 per 1M output tokens ($16.00 blended at 3:1) (list price, 13 Nov 2026).
- Claude Mythos 5.2 was released on 9 Nov 2026 (Anthropic).
In detail. Claude Mythos 5.2 is an Anthropic reasoning model, released 9 Nov 2026. It is not yet ranked: no independent benchmark results so far, only pricing and metadata. At $16.00 per million tokens blended it is among the most expensive ranked models.
- Blended price
- $16.00/M
- $8.00 in · $40.00 out
- via LiteLLM price table
- Output speed
- –
- First answer
- –
- Context
- 1M
- via LiteLLM price table
- Full answer
- –
- Cost per task
- –
- Tokens per task
- –
- Released
- 9 Nov 2026
Versions
Anthropic has shipped 2 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.
| Model | Released | Index | Rank |
|---|---|---|---|
| NewClaude Mythos 5.2this page | 9 Nov 2026 | – | – |
| Claude Mythos 5.1 | – | – | – |
No independent quality benchmark results yet — only pricing and metadata.
What a task costs
Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache. Reasoning tokens are not modelled.
| Workload | Tokens in / out | Cost | With caching | Time |
|---|---|---|---|---|
| Chat reply | 400 / 300 | $0.015 | – | – |
| Summarize a 30-page report | 12,000 / 600 | $0.120 | – | – |
| Code edit | 6,000 / 1,500 | $0.108 | – | – |
| Agentic coding session | 60,000 / 4,000 | $0.640 | – | – |
| Structured extraction | 2,000 / 200 | $0.024 | – | – |
More from Anthropic
Compare Claude Mythos 5.2 with…
See also
Questions people ask
- Why does Claude Mythos 5.2 have no BenchLeader Index score?
- The index needs at least five independent results across at least two categories, and as of 13 Nov 2026 Claude Mythos 5.2 does not have them yet. Launch-post scores are never used, so it is ranked once independent publishers have measured it.
- How much does Claude Mythos 5.2 cost per 1M tokens?
- As of 13 Nov 2026, Claude Mythos 5.2 costs $8.00 per 1M input tokens and $40.00 per 1M output tokens, $16.00 blended (three input tokens per output token).
- Is Claude Mythos 5.2 better than Claude Fable 5.2?
- As of 13 Nov 2026, only one of these has enough independent results to rank, so compare them benchmark by benchmark below. The head-to-head page has the benchmark-by-benchmark detail.
- When was Claude Mythos 5.2 released?
- Anthropic released Claude Mythos 5.2 on 9 Nov 2026.
Data as of 13 Nov 2026. Compare with another model.
Cite as: BenchLeader, “Claude Mythos 5.2: benchmarks, pricing, speed and rank”, data as of 13 Nov 2026, https://www.benchleader.com/models/claude-mythos-5-2.