Claude Sonnet 5
AnthropicReleased Jun 30, 2026Closed weightsclaude-sonnet-5
- Intelligence (Epoch)
- 157 · 20th of 111
- Reasoning
- yes, with effort levels
- Knowledge cutoff
- January 2026
- Context
- 1M tokens
- Max output
- 128K tokens
- Input
- text, image
- API features
- tools, structured outputs, JSON mode
- Anthropic's API
- yes, as claude-sonnet-5
Read Oct 23, 06:00 UTC from the hosts' published offers and OpenRouter, spec sheet from Anthropic · cutoff: docs.anthropic.com
Intelligence for the price
7 models score higher for the same price or less; it ranks 8 of the 98 models at its price or below.
Epoch Capabilities Index against the lowest input + output price per M, log scale · prices Oct 23. Score: Epoch AI, CC BY 4.0, 157 with an interval of 154 to 160.
Against its rivals
The best of its price range and the top score
- Claude Sonnet 5this model$12.00157
- Claude Opus 5.5top score$24.00169
- GPT-6.1 Solsame price range$12.00168
- Claude Sonnet 5.5same price range$12.00166
Same level for 63× less: GLM-5.3-Flash at StreamLake, $0.19 per M input + output · their Epoch intervals overlap (153 against 157).
Bars: Epoch Capabilities Index (Epoch AI, CC BY 4.0), drawn from 100, below the lowest score in the catalogue · price: lowest input + output per M.
Speed by provider
Output speed of Claude Sonnet 5 at each host, fastest first
- Google82 tok/s1.31 s to first token
- Anthropic79 tok/s1.19 s to first token
- Amazon Bedrock66 tok/s1.57 s to first token
Speed: OpenRouter, median of the last 30 min, read Oct 23, 06:00 UTC · a snapshot of real traffic before the daily read, not a daily average · bars from zero.
| Provider | Input | Output | Cache ↑ | tok/s | First token | Uptime 24h | Checked |
|---|---|---|---|---|---|---|---|
| Anthropic | $2.00 | $10.00 | $0.20 | 79 | 1.19 s | 100% | Oct 23 |
| Amazon Bedrock | $2.00 | $10.00 | $0.20 | 66 | 1.57 s | 100% | Oct 23 |
| $2.00 | $10.00 | $0.20 | 82 | 1.31 s | 100% | Oct 23 |
3 of 3 providers · prices per million tokens, read Oct 23, 06:00 UTC · speed: OpenRouter, median of the last 30 min, read Oct 23, 06:00 UTC · uptime: OpenRouter, last 24 h
| Provider | Weights | Context | Max output | Tools | Structured outputs | Reasoning |
|---|---|---|---|---|---|---|
| Anthropic | — | 1M | 125K | yes | yes | yes |
| Amazon Bedrock | — | 1M | 125K | yes | no | yes |
| — | 1M | 125K | yes | yes | yes |
As served by each host and declared to OpenRouter; not verified by us · weights: the precision the host declares
Claude Sonnet 5 spec sheet, field by field, with sources
Claude Sonnet 5 spec sheetmaker-declared
What Anthropic declares about the model itself — read from its own weights repository and documentation, not from any host. What each endpoint actually serves is in the pricing above: the two can differ, and both are true.
- Context window
- 1,000,000 tokens
- Parameters
- not published by the maker
- Active experts
- not published by the maker
- Weight precision
- not applicable — no weights publishedcurated
- License
- Proprietary — API onlycuratedScope: the licence on the published weights, and nothing else. It is not the maker's acceptable-use policy, which is a separate document, and it is not the contract you sign with whichever host you call — hosts set their own terms, which this index does not read.
- Knowledge cutoff
- January 2026
- Modalities
- text · image → text
- Max output (official)
- 128,000 tokens
- Release date
- June 30, 2026
- Maker lifecycle status
- to verify
platform.claude.com · maker's documentation · read 2026-09-07 · 6 of 10 fields published by the maker
| Provider | Chatbot 1,000 in / 500 out | RAG / long context 8,000 in / 500 out | Batch summarize 4,000 in / 1,000 out |
|---|---|---|---|
| Anthropic | $7.00 | $21.00 | $18.00 |
| Amazon Bedrock | $7.00 | $21.00 | $18.00 |
| $7.00 | $21.00 | $18.00 |
What each host bills for 1,000 requests of a representative job
Your own workload
Other Anthropic models · all its models, hosts and history ›
- Claude Fable 53 providers · from $60.00
- Claude Fable 5.13 providers · from $60.00
- Claude Opus 53 providers · from $30.00
- Claude Haiku 4.51 provider · from $6.00
- Claude Haiku 5.51 provider · from $0.60
- Claude Opus 4.11 provider · from $90.00
Head-to-head: Claude Sonnet 5 (Anthropic) vs GPT-5.6 Sol (OpenAI)