Claude Sonnet 4.6 vs Seedance 2.0: Benchmarks, Pricing & Capabilities Compared
TL;DR — Claude Sonnet 4.6 wins for general use · Seedance 2.0 wins for general use.
Claude Sonnet 4.6 Anthropic
- Released
- 2026-02-17
- Context window
- 500K tokens
- Input price
- $3.00 / Mtok
- Output price
- $15.00 / Mtok
Key features
- Agent Teams: orchestrate 2-16 Claude instances
- Near-Opus performance at 1/5th cost
- 80.8% SWE-bench Verified
Seedance 2.0 ByteDance
- Released
- 2026-02-10
Key features
- Synchronized audio + video generation in one pass
- Lip-sync in 8+ languages
- 10-30x cheaper than Sora 2
Benchmark comparison
No benchmarks reported on both models.
Pricing comparison
| Metric | Claude Sonnet 4.6 | Seedance 2.0 |
|---|---|---|
| Input ($/Mtok) | $3.00 | — |
| Output ($/Mtok) | $15.00 | — |
| Cached input ($/Mtok) | $0.30 | — |
| Cost per 1M-token roundtrip (1M in + 1M out) | $18.00 | — |
Context window & modalities
| Attribute | Claude Sonnet 4.6 | Seedance 2.0 |
|---|---|---|
| Context window | 500K tokens | — |
| Input modalities | text, image, PDF | text, image |
| Output modalities | text | video |
| Knowledge cutoff | 2025-10 | 2025-12 |
Verdict by use case
Coding
Insufficient data
Basis: SWE-bench
No shared coding benchmark.
Reasoning
Insufficient data
Basis: GPQA / MMLU
No shared reasoning benchmark.
Math
Insufficient data
Basis: MATH / AIME
No shared math benchmark.
Long context
Insufficient data
Basis: Context window
Context window not reported.
Cost
Insufficient data
Basis: Input $/Mtok
Input pricing not reported on both.
Changelog & releases
Claude Sonnet 4.6
Released 2026-02-17
Predecessor: anthropic-claude-sonnet-4
- Agent Teams: orchestrate 2–16 Claude instances in parallel
- +8.5pt on SWE-bench Verified vs Sonnet 4
- 1/5 the cost of Opus 4.5 at ~95% of coding quality
- Fast mode research preview for lower-latency inference
Seedance 2.0
Released 2026-02-10