Anthropic · Released May 27, 2026
Claude Opus 4.8
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
- Top 12%LMCA
- Top 14%GBAEval
- Top 21%CritPt
- Top 22%Chess Puzzles
- Released
- May 27 2026
- Context window
- 1M 128K out
- Input / 1M tokens
- $5.00
- Output / 1M tokens
- $25.00
Where to run it
5 providers compared
Cheapest: Claude Platform on AWS, Amazon Bedrock, Google +2 more at $5.00 / $25.00 per 1M input / output tokens — 50% less than the priciest option.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| Claude Platform on AWS | $5.00 | $25.00 | $0.50 | 1M | 128K | 100%24h | Cheapest |
| Amazon Bedrock | $5.00 | $25.00 | $0.50 | 1M | 128K | 100%24h | Cheapest |
| Googleglobal | $5.00 | $25.00 | $0.50 | 1M | 128K | 100%24h | Cheapest |
| Anthropic | $5.00 | $25.00 | $0.50 | 1M | 128K | 100%24h | Cheapest |
| Azureglobal | $5.00 | $25.00 | $0.50 | 1M | 128K | — | Cheapest |
| Amazon Bedrockus | $5.50 | $27.50 | $0.55 | 1M | 128K | 100%24h | +10% |
| Amazon Bedrockeu-west-1 | $5.50 | $27.50 | $0.55 | 1M | 128K | 100%24h | +10% |
| Googleeurope | $5.50 | $27.50 | $0.55 | 1M | 128K | 100%24h | +10% |
| Azureus | $5.50 | $27.50 | $0.55 | 1M | 128K | — | +10% |
| Googleus | $5.50 | $27.50 | $0.55 | 1M | 128K | — | +10% |
| Anthropicfast | $10.00 | $50.00 | $1.00 | 1M | 128K | 100%24h | +100% |
Value
Price vs. performance
Claude Opus 4.8 Other Anthropic Other labs Value frontier · GPQA Diamond vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.
Benchmarks
27 benchmark scores
| Benchmark | Score | Rank | Leader |
|---|---|---|---|
| DeepSWESoftware engineering · Original long-horizon tasks across active open-source repos | 59.0% | #14of 26 | GPT-6 Astra74.1% |
| FrontierCodeSoftware engineering · Mergeable fixes for hard open-source issues | 46.5% | #13of 41 | Claude Opus 5.554.6% |
| GBAEvalSoftware engineering · Build a Game Boy Advance emulator from scratch | 70.9% | #3of 23 | Claude Opus 579.6% |
| GSOSoftware engineering · Optimize real code to make it significantly faster | 47.1% | #5of 20 | Claude Fable 5.188.2% |
| SciCodeSoftware engineering · Research-coding problems from the natural sciences | 53.5% | #34of 93 | Claude Opus 5.566.9% |
| APEX-AgentsAgents & computer use · Long professional tasks in banking, consulting and law | 48.9% | #27of 51 | Gemini 4 Argon82.4% |
| Remote Labor IndexAgents & computer use · Real paid freelance projects done end-to-end | 8.3% | #5of 13 | Claude Opus 5.521.3% |
| OSWorld 2.0Agents & computer use · Long real-world desktop and web tasks | 20.6% | #3of 9 | Claude Opus 531.4% |
| Vending-Bench 2Agents & computer use · Run a simulated vending business for a year (final balance) | $5,787 | #22of 61 | GPT-6 Astra$15,515 |
| PostTrainBenchAgents & computer use · Post-train small models under a fixed compute budget | 33.8% | #4of 11 | Claude Fable 541.8% |
| DeepResearch BenchWriting & content · Find and synthesize information from the web | 50.2% | #6of 20 | Claude Opus 4.655.3% |
| GDP.pdfWriting & content · Answer questions about real professional PDFs | 24.0% | #13of 38 | GPT-6.1 Sol35.0% |
| SimpleQA VerifiedWriting & content · Factual accuracy on 1,000 short questions | 53.0% | #21of 66 | Gemini 4 Argon76.0% |
| WebDev ArenaDesign & visual · People vote on which model builds the better website (Elo) | 1559 | #32of 88 | Claude Opus 5.51820 |
| Blueprint-Bench 2Design & visual · Turn apartment photos into 2D floor plans | 14.5% | #26of 32 | Gemini 4 Argon54.4% |
| Furniture AssemblyDesign & visual · Spot mistakes in photos of IKEA builds | 42.5% | #14of 34 | Claude Opus 5.583.3% |
| GPQA DiamondReasoning & knowledge · PhD-level biology, chemistry and physics questions | 91.0% | #26of 92 | Gemini 4 Argon96.4% |
| ARC-AGI-2Reasoning & knowledge · Few-shot abstract reasoning on grid puzzles | 72.1% | #21of 63 | GPT-6 Astra95.0% |
| ARC-AGI-1Reasoning & knowledge · Pattern induction from input–output examples | 92.5% | #23of 63 | Gemini 4 Argon98.5% |
| SimpleBenchReasoning & knowledge · Common-sense trick questions about space, time and people | 64.8% | #14of 43 | Claude Fable 581.9% |
| CritPtReasoning & knowledge · Open-ended, research-level physics problems | 20.9% | #20of 96 | GPT-5.6 Sol32.3% |
| Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles | 52.0% | #15of 70 | GPT-6 Astra76.0% |
| LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts | 57.5% | #11of 96 | Claude Sonnet 5.568.3% |
| FrontierMathMaths · Expert-written problems, undergrad to early research (tiers 1–3) | 80.0% | #16of 72 | GPT-6.1 Sol93.7% |
| FrontierMath Tier 4Maths · Exceptionally hard research-level problems | 56.1% | #16of 62 | GPT-6.1 Sol100.0% |
| ProofBenchMaths · Graduate maths proofs verified in Lean 4 | 69.0% | #17of 70 | Claude Sonnet 5.5100.0% |
| OTIS Mock AIMEMaths · Competition-style problems harder than MATH Level 5 | 98.3% | #20of 90 | Gemini 4 Argon100.0% |
Specs
Details
- Model ID
anthropic/claude-opus-4.8- Developer
- Anthropic
- Release date
- May 27, 2026 ·
- Context window
- 1,000,000 tokens
- Max output
- 128,000 tokens
- API price
- $5.00 / $25.00 per 1M input / output tokens
- Providers
- 5
- Input types
- text, image, file
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Free tier
- No
Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.