Claude Fable 5 vs DeepSeek V4
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Anthropic · Jun 2026
The first GA model of Anthropic's Mythos class — a tier above Opus — and the current SWE-bench Verified leader, at $10/$50 per 1M tokens.
DeepSeek · Mar 2026
The open-weights shock of 2026: ~81% SWE-bench Verified, a 1M context and MIT license at $0.30/$0.50 per million tokens.
The verdict
Claude Fable 5 wins 1 of the 1 benchmarks these models share, against 0 for DeepSeek V4. On price the gap is dramatic: DeepSeek V4 works out roughly 57x cheaper per blended million tokens. And DeepSeek V4 is open-weights (MIT), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
Benchmark head-to-head 1–0
Specs & pricing
| Claude Fable 5 | DeepSeek V4 | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $10 | $0.3 |
| Output price / 1M | $50 | $0.5 |
| Context window | 1M | 1M |
| Max output | 128K | 64K |
| Open weights | no | yes (MIT) |
| Reasoning model | yes | yes |
| Multimodal input | text, image | text |
| Knowledge cutoff | Jan 2026 | Dec 2025 |
| Released | Jun 2026 | Mar 2026 |
| Example monthly cost* | $175.00 | $3.75 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Claude Fable 5 or DeepSeek V4?
- Claude Fable 5 wins 1 of the 1 benchmarks these models share, against 0 for DeepSeek V4. On price the gap is dramatic: DeepSeek V4 works out roughly 57x cheaper per blended million tokens. And DeepSeek V4 is open-weights (MIT), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
- Which is cheaper, Claude Fable 5 or DeepSeek V4?
- Claude Fable 5 costs $10/$50 per million input/output tokens, while DeepSeek V4 costs $0.3/$0.5. For a typical workload of 10M input and 1.5M output tokens per month, that's $175.00 versus $3.75.
- Which model is better for coding, Claude Fable 5 or DeepSeek V4?
- On SWE-bench Verified — the standard agentic-coding benchmark — Claude Fable 5 scores ~95% versus ~81% for DeepSeek V4, making Claude Fable 5 the stronger pick for coding agents.