| Signal | Claude Sonnet 4 | Delta | GPT-5.1 Chat |
|---|---|---|---|
Capabilities | 71 | -- | |
Context window size | 84 | +3 | |
Output Capacity | 80 | +10 | |
Pricing Tier | 15 | +5 | |
Recency | 81 | -19 | |
Versatility | 67 | -- | |
| Overall Result | 3 wins | of 6 | 1 wins |
7
days ranked higher
4
days
19
days ranked higher
Anthropic
OpenAI
GPT-5.1 Chat saves you $425.00/month
That's $5100.00/year compared to Claude Sonnet 4 at your current usage level of 100K calls/month.
| Metric | Claude Sonnet 4 | GPT-5.1 Chat | Winner |
|---|---|---|---|
| Overall Score | 61 | 61 | GPT-5.1 Chat |
| Rank | #54 | #48 | GPT-5.1 Chat |
| Quality Rank | #54 | #48 | GPT-5.1 Chat |
| Adoption Rank | #54 | #48 | GPT-5.1 Chat |
| Parameters | -- | -- | -- |
| Context Window | 200K | 128K | Claude Sonnet 4 |
| Pricing | $3.00/$15.00/M | $1.25/$10.00/M | -- |
| Signal Scores | |||
| Capabilities | 71 | 71 | Claude Sonnet 4 |
| Context window size | 84 | 81 | Claude Sonnet 4 |
| Output Capacity | 80 | 70 | Claude Sonnet 4 |
| Pricing Tier | 15 | 10 | Claude Sonnet 4 |
| Recency | 81 | 100 | GPT-5.1 Chat |
| Versatility | 67 | 67 | Claude Sonnet 4 |
Claude Sonnet 4 and GPT-5.1 Chat are extremely close in overall performance (only 0.20000000000000284 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
Claude Sonnet 4
Marginally better benchmark scores; both are excellent
Best for Cost
GPT-5.1 Chat
38% lower pricing; better value at scale
Best for Reliability
Claude Sonnet 4
Higher uptime and faster response speeds
Best for Prototyping
Claude Sonnet 4
Stronger community support and better developer experience
Best for Production
Claude Sonnet 4
Wider enterprise adoption and proven at scale
by Anthropic
| Capability | Claude Sonnet 4 | GPT-5.1 Chat |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Modediffers | ||
| Reasoningdiffers | ||
| Web Search | ||
| Image Output |
Anthropic
OpenAI
GPT-5.1 Chat saves you $9.15/month
That's 39% cheaper than Claude Sonnet 4 at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Claude Sonnet 4 | GPT-5.1 Chat |
|---|---|---|
| Context Window | 200K | 128K |
| Max Output Tokens | 64,000 | 16,384 |
| Open Source | No | No |
| Created | May 22, 2025 | Nov 13, 2025 |
GPT-5.1 Chat currently scores higher (61 vs 61), but the best choice depends on your specific use case, budget, and requirements.
Claude Sonnet 4 is ranked #54 and GPT-5.1 Chat is ranked #48. Rankings are based on a composite score from multiple signals including benchmarks, community sentiment, and adoption metrics.
Compare the detailed pricing breakdown above to see which model offers better value for your usage pattern.