Claude Sonnet 5 vs GPT-6 Astra
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Claude Sonnet 5 | GPT-6 Astra |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Family | Claude 5 | Gpt 6 |
| Model | Claude Sonnet 5 | GPT-6 Astra |
| Version | Claude Sonnet 5 | GPT-6 Astra |
| Lifecycle | active | active |
| Released | 2026-06-30 | 2026-09-03 |
| Knowledge cutoff | Unknown | 2026-04-30 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,000K | 1,050K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Anthropic (Standard), Deepinfra (Standard), Openrouter (Standard) | Openai (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, computer-use, generation, reasoning, research, tools |
14 comparable fields · 8 material differences · Pair passes the primary-source comparison gate
Claude Sonnet 5 Capabilities
GPT-6 Astra Capabilities
Internal Comparison Graph
Related Comparisons
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|---|---|---|---|
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Claude Sonnet 5Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
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Claude Sonnet 5Anthropic | vs |  Kimi-K3Moonshot AI | cross-developer peersimage, text |
 MiniMax-M3MiniMax | vs | Claude Sonnet 5Anthropic | cross-developer peersimage, text |
Claude Sonnet 5Anthropic | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Claude Sonnet 5Anthropic | vs |  Hy4 previewTencent | cross-developer peerstext |
Claude Sonnet 5Anthropic | vs | Seed 2.1 ProByteDance Seed | cross-developer peersimage, text |
Claude Sonnet 5Anthropic | vs |  Mistral Large 3Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Sonnet 5 vs GPT-6 Astra FAQs
Is Claude Sonnet 5 or GPT-6 Astra better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Sonnet 5 and GPT-6 Astra, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Sonnet 5 or GPT-6 Astra?+
Claude Sonnet 5 is $2.00 and GPT-6 Astra is $10.00 per million tokens, so Claude Sonnet 5 is cheaper on this metric. Claude Sonnet 5 is $10.00 and GPT-6 Astra is $50.00 per million tokens, so Claude Sonnet 5 is cheaper on this metric.
Which has a larger context window, Claude Sonnet 5 or GPT-6 Astra?+
GPT-6 Astra has the larger sourced context window. Claude Sonnet 5 supports 1,000K and GPT-6 Astra supports 1,050K.
Which performs better in benchmarks, Claude Sonnet 5 or GPT-6 Astra?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Sonnet 5 or GPT-6 Astra be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Sonnet 5 is not marked open weight; GPT-6 Astra is not marked open weight.
Can Claude Sonnet 5 and GPT-6 Astra understand images?+
Claude Sonnet 5 is documented with image input; GPT-6 Astra is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Sonnet 5 or GPT-6 Astra?+
Neither has a larger sourced maximum output. Claude Sonnet 5 is 128K and GPT-6 Astra is 128K.
Do Claude Sonnet 5 and GPT-6 Astra support reasoning and tool use?+
Claude Sonnet 5: reasoning, tool calling, and image input. GPT-6 Astra: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Sonnet 5 or GPT-6 Astra?+
Claude Sonnet 5 has 3 sourced provider routes; GPT-6 Astra has 1, so Claude Sonnet 5 has broader tracked availability.
Which offers better value, Claude Sonnet 5 or GPT-6 Astra?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.